alpg_match.F

CMSSW/GeneratorInterface/PartonShowerVeto/src/alpg_match.F

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1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131	`-- AUTHOR : MICHELANGELO MANGANO` `C----------------------------------------------------------------------` `SUBROUTINE ALVETO(IPVETO)` `C----------------------------------------------------------------------` `C SUBROUTINE TO IMPLEMENT THE MLM JET MATCHING CRITERION` `C----------------------------------------------------------------------` `IMPLICIT NONE` `C...GUP EVENT COMMON BLOCK` `INTEGER MAXNUP` `PARAMETER (MAXNUP=500)` `INTEGER NUP,IDPRUP,IDUP,ISTUP,MOTHUP,ICOLUP` `DOUBLE PRECISION XWGTUP,SCALUP,AQEDUP,AQCDUP,PUP,VTIMUP,SPINUP` `COMMON/HEPEUP/NUP,IDPRUP,XWGTUP,SCALUP,AQEDUP,AQCDUP,` `& IDUP(MAXNUP),ISTUP(MAXNUP),MOTHUP(2,MAXNUP),` `& ICOLUP(2,MAXNUP),PUP(5,MAXNUP),VTIMUP(MAXNUP),` `& SPINUP(MAXNUP)` `C...HEPEVT COMMONBLOCK.` `INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP` `PARAMETER (NMXHEP=4000)` `COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),` `&JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)` `DOUBLE PRECISION PHEP,VHEP` `SAVE /HEPEVT/` `c process code` `integer ihrd` `integer itopprc` `c--event file data` `integer Nunit,NunitOut,NunitIni` `character512 filename` `c total number of input events` `common/AHio/Nunit,NunitOut,NunitIni,filename` `c inputs for the matching algorithm` `integer iexc,npfst,nplst,nljets,njstart,njlast` `$ ,ickkw` `double precision etclus,rclus,etaclmax` `common/AHopts/etclus,rclus,etaclmax,iexc,npfst` `$ ,nplst,nljets,njstart,njlast,ickkw` `c process and particles parameters` `double precision mc,mb,mt,mw,mz,mh` `double precision ebeam` `integer ndns,ih1,ih2` `integer nw,nz,nh,nph` `integer ihvy,ihvy2` `c pdf set type` `character pdftyp25` `c total number of partons` `integer npart` `common/AHppara/mc,mb,mt,mw,mz,mh,` `& ebeam,ih1,ih2,` `& ihrd,itopprc,` `& nw,nz,nh,nph,` `& ihvy,ihvy2,` `& npart,ndns,pdftyp` `c weight information` `real 8 maxwgt,avgwgt,errwgt,totlum` `integer unwev` `common/AHwgts/maxwgt,avgwgt,errwgt,totlum,unwev` `c general parameters` `integer nparam` `parameter (nparam=200)` `integer parlen,partyp` `character chpar8,chpdes70` `double precision parval` `common/AHpars/parval(nparam),chpar(nparam),chpdes(nparam)` `$ ,parlen(nparam),partyp(nparam)` `c global event cuts` `double precision ptjmin,ptjmax,etajmax,drjmin,` `+ ptbmin,ptbmax,etabmax,drbmin,` `+ ptcmin,ptcmax,etacmax,drcmin,` `+ ptphmin,etaphmax,drphjmin,drphmin,drphlmin,` `+ ptlmin,etalmax,drlmin,metmin,mllmin,mllmax` `common/AHcuts/ptjmin,ptjmax,etajmax,drjmin,` `+ ptbmin,ptbmax,etabmax,drbmin,` `+ ptcmin,ptcmax,etacmax,drcmin,` `+ ptphmin,etaphmax,drphjmin,drphmin,drphlmin,` `+ ptlmin,etalmax,drlmin,metmin,mllmin,mllmax` `INTEGER IPVETO` `C CALSIM AND JET VARIABLES` `INTEGER NCY,NCPHI,NJMAX,JETNO,NCJET` `DOUBLE PRECISION YCMIN,YCMAX,PI,ET,DELPHI,CPHCAL,SPHCAL,DELY,` `& CTHCAL,STHCAL,PCJET,ETJET` `PARAMETER (NCY=100)` `PARAMETER (NCPHI=60,PI=3.141593D0)` `COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),` `$ CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN` `$ ,YCMAX` `PARAMETER (NJMAX=500)` `COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET` `C` `DOUBLE PRECISION PSERAP` `INTEGER K(NJMAX),KP(NJMAX),KPJ(NJMAX)` `C LOCAL VARIABLES` `INTEGER I,J,IHEP,NMATCH,JRMIN` `DOUBLE PRECISION ETAJET,PHIJET,DELR,DPHI,DELRMIN` `DOUBLE PRECISION P(4,10),PT(10),ETA(10),PHI(10)` `C HEAVY QUARK MATCHING` `INTEGER IHVQ(10),NHVQ,NMJET,ID` `DOUBLE PRECISION ETAHVQ(10),PHIHVQ(10)` `INTEGER IEND,INORAD` `COMMON/SHVETO/IEND,INORAD(MAXNUP)` `C DEBUGGING OPTIONS` `INTEGER IDBG` `PARAMETER (IDBG=0)` `DOUBLE PRECISION PTPART,PTJETS,ETAPART,ETAJETS` `INTEGER NMAX` `COMMON/MTCHDBG/PTPART(10),PTJETS(10),ETAPART(10),ETAJETS(10),NMAX` `C` `DOUBLE PRECISION ETMIN,ETMAX` `DOUBLE PRECISION TINY` `PARAMETER (TINY=1D-3)` `INTEGER ICOUNT` `DATA ICOUNT/0/` `C` `IPVETO=0` `IF(ICKKW.EQ.0) RETURN` `IF(IHRD.EQ.7.OR.IHRD.EQ.8.OR.IHRD.EQ.13) THEN` `WRITE(,) 'JET MATCHING FOR HARD PROCESS ',IHRD` `$ ,' NOT IMPLEMENTED, STOP'` `STOP` `ENDIF` `IF(NLJETS.EQ.0.AND.IEXC.EQ.0) RETURN` `C CHECK FOR EVENT ERROR OR ZERO WGT` `I=0` `C HERWIG/PYTHIA SPECIFIC` `C CALL ALSHER(I)` `IF(I.EQ.1) RETURN` `c init uninit variables` `jrmin = 0` `etmin = 0.` `C` `C INITIALIZE DEBUG IF NEEDED` `IF(IDBG.EQ.1) THEN` `WRITE(1,) ' '` `WRITE(1,) 'NEW EVENT '` `WRITE(1,) 'PARTONS'` `ENDIF` `IF(IDBG.EQ.2) THEN` `DO I=1,10` `PTPART(I)=0D0` `ETAPART(I)=0D0` `PTJETS(I)=0D0` `ETAJETS(I)=0D0` `ENDDO` `NMAX=0` `ENDIF` `C` `C RECONSTRUCT PARTON-LEVEL EVENT` `C START FROM THE PARTONIC SYSTEM` `C NOTICE THAT THIS INFO COMES FROM THE HEPEUP` `DO I=1,NLJETS` `IHEP=I+NJSTART` `DO J=1,4` `P(J,I)=PUP(J,IHEP)` `ENDDO` `PT(I)=SQRT(P(1,I)2+P(2,I)2)` `ETA(I)=-LOG(TAN(0.5D0ATAN2(PT(I)+TINY,P(3,I))))` `PHI(I)=ATAN2(P(2,I),P(1,I))` `IF(IDBG.EQ.1) THEN` `WRITE(1,) PT(I),ETA(I),PHI(I)` `ENDIF` `ENDDO` `IF(NLJETS.GT.0) CALL ALPSOR(PT,NLJETS,KP,2)` `C` `C DISPLAY EVENT SEEN BY UPVETO:` `C NOW THIS INFO COMES FROM THE HEPEVT` `IF(IDBG.EQ.1) THEN` `DO I=1,NHEP` `WRITE(1,111) I,ISTHEP(I),IDHEP(I),JMOHEP(1,I),JMOHEP(2,I)` `$ ,PHEP(1,I),PHEP(2,I),PHEP(3,I)` `ENDDO` `111 FORMAT(5(I4,1X),3(F12.5,1X))` `ENDIF` `C PRINT THE INORAD STATUS OF THE PARTICLES.` `C (UNCOMMENT TO MAKE IT WORK)` `C MUST BE LINKED WITH alpg_debug.F IN AlpgenInterface` `C CALL DBINRD` `C DISPLAY PYTHIA EVENT:` `C CALL PYLIST(7) ! PYTHIA USER PROCESS EVENT DUMP` `C CALL PYLIST(2) ! PYTHIA FULL EVENT DUMP` `C CALL PYLIST(5) ! PYTHIA HEPEVT DUMP` `C` `C RECONSTRUCT SHOWERED JETS:` `CALL CALINI_ALPGEN` `CALL CALDEL_ALPGEN(NPFST,NPLST,NJLAST)` `CALL GETJET_ALPGEN(RCLUS,ETCLUS,ETACLMAX)` `IF(NCJET.GT.0) CALL ALPSOR(ETJET,NCJET,K,2)` `IF(IDBG.EQ.1) THEN` `WRITE(1,) 'JETS'` `DO I=1,NCJET` `J=K(NCJET+1-I)` `ETAJET=PSERAP(PCJET(1,J))` `PHIJET=ATAN2(PCJET(2,J),PCJET(1,J))` `WRITE(1,) ETJET(J),ETAJET,PHIJET` `ENDDO` `ENDIF` `C ANALYSE ONLY EVENTS WITH AT LEAST NLJETS-RECONSTRUCTED JETS` `IF(NCJET.LT.NLJETS) GOTO 999` `C ASSOCIATE PARTONS AND JETS, USING MIN(DELR) AS CRITERION` `NMATCH=0` `DO I=1,NCJET` `KPJ(I)=0` `ENDDO` `DO I=1,NLJETS` `DELRMIN=1D5` `DO 110 J=1,NCJET` `IF(KPJ(J).NE.0) GO TO 110` `ETAJET=PSERAP(PCJET(1,J))` `PHIJET=ATAN2(PCJET(2,J),PCJET(1,J))` `DPHI=ABS(PHI(KP(NLJETS-I+1))-PHIJET)` `IF(DPHI.GT.PI) DPHI=2.PI-DPHI` `DELR=SQRT((ETA(KP(NLJETS-I+1))-ETAJET)2+(DPHI)2)` `IF(DELR.LT.DELRMIN) THEN` `DELRMIN=DELR` `JRMIN=J` `ENDIF` `110 CONTINUE` `ETMIN=1D10` `IF(DELRMIN.LT.1.5RCLUS) THEN` `NMATCH=NMATCH+1` `KPJ(JRMIN)=I` `ETMIN=MIN(ETMIN,ETJET(JRMIN))` `C ASSOCIATE PARTONS AND MATCHED JETS:` `IF(IDBG.EQ.2) THEN` `PTPART(I)=PT(KP(NLJETS-I+1))` `ETAPART(I)=ETA(KP(NLJETS-I+1))` `PTJETS(I)=ETJET(JRMIN)` `ETAJETS(I)=PSERAP(PCJET(1,JRMIN))` `NMAX=NCJET` `ENDIF` `C WRITE(,) 'PARTON-JET',I,' BEST MATCH:',K(NCJET+1-JRMIN)` `C $ ,DELRMIN` `ENDIF` `ENDDO` `IF(NMATCH.LT.NLJETS) GOTO 999` `C REJECT EVENTS WITH LARGER JET MULTIPLICITY FROM EXCLUSIVE SAMPLE` `IF(NCJET.GT.NLJETS.AND.IEXC.EQ.1) GOTO 999` `C VETO EVENTS WHERE MATCHED JETS ARE SOFTER THAN NON-MATCHED ONES` `IF(IEXC.NE.1) THEN` `J=NCJET` `DO I=1,NLJETS` `IF(KPJ(K(J)).EQ.0) GOTO 999` `J=J-1` `ENDDO` `ENDIF` `C` `C ADDITIONAL TREATMENT FOR HVQ EVENTS: VETO/ACCEPT JETS EMITTED BY HVQ'S` `IF(IHRD.LE.2.OR.IHRD.EQ.6.OR.IHRD.EQ.10.OR.IHRD.EQ.15) THEN` `CALL CALINI_ALPGEN` `C RECOSTRUCT POSSIBLE JETS FROM RADIATION OFF THE TOP QUARKS` `CALL CALDEL_ALPGEN_HVQ(NPFST,NPLST,NJLAST)` `CALL GETJET_ALPGEN(RCLUS,ETCLUS,ETACLMAX)` `C IF NO EXTRA JET: ACCEPT EVENT` `IF(NCJET.EQ.0) RETURN` `C IF EXTRA JETS, REMOVE THOSE LYING WITHIN DRJMIN OF A B/C QUARK, TO` `C ALLOW THE SHOWER TO GOVERN THE DEVELOPMENT OF A B/C JET.` `C START BY FLAGGING VETOED Q AND QBAR OBJECTS:` `NHVQ=0` `DO I=1,NHEP` `ID=IDHEP(I)` `IF(INORAD(I).EQ.1.AND.ABS(ID).LE.5.AND.ABS(ID)` `$ .GE.4) THEN` `NHVQ=NHVQ+1` `IHVQ(NHVQ)=I` `ETAHVQ(NHVQ)=PSERAP(PHEP(1,I))` `PHIHVQ(NHVQ)=ATAN2(PHEP(2,I),PHEP(1,I))` `ENDIF` `ENDDO` `NMJET=NCJET` `DO I=1,NCJET` `ETAJET=PSERAP(PCJET(1,I))` `PHIJET=ATAN2(PCJET(2,I),PCJET(1,I))` `DO J=1,NHVQ` `DPHI=ABS(PHIHVQ(J)-PHIJET)` `IF(DPHI.GT.PI) DPHI=ABS(DPHI-2PI)` `DELR=SQRT(DPHI2+(ETAJET-ETAHVQ(J))2)` `IF(DELR.LT.DRJMIN) THEN` `NMJET=NMJET-1` `ETJET(I)=0D0` `ENDIF` `ENDDO` `ENDDO` `C IF NO UNMATCHED JET: ACCEPT EVENT` `IF(NMJET.EQ.0) RETURN` `C IF JETS AND IEXC=1: REJECT EVENT` `IF(IEXC.EQ.1) GOTO 999` `C IF JETS AND IEXC=0: CHECK THAT JETS ARE SOFTER THAN MATCHED ONES` `ETMAX=0D0` `DO I=1,NCJET` `ETMAX=MAX(ETMAX,ETJET(I))` `ENDDO` `IF(ETMAX.GT.ETMIN) GOTO 999` `ENDIF` `RETURN` `C HERWIG/PYTHIA TERMINATION:` `999 CALL ALSHEN` `IPVETO=1` `END` `C----------------------------------------------------------------------` `SUBROUTINE ALSETP` `C----------------------------------------------------------------------` `C EVENT INITIALITION ROUTINE THAT STARTS OFF FILLED COMMON BLOCKS` `C----------------------------------------------------------------------` `IMPLICIT NONE` `c process code` `integer ihrd` `integer itopprc` `c inputs for the matching algorithm` `integer iexc,npfst,nplst,nljets,njstart,njlast` `$ ,ickkw` `double precision etclus,rclus,etaclmax` `common/AHopts/etclus,rclus,etaclmax,iexc,npfst` `$ ,nplst,nljets,njstart,njlast,ickkw` `c process and particles parameters` `double precision mc,mb,mt,mw,mz,mh` `double precision ebeam` `integer ndns,ih1,ih2` `integer nw,nz,nh,nph` `integer ihvy,ihvy2` `c pdf set type` `character pdftyp25` `c total number of partons` `integer npart` `common/AHppara/mc,mb,mt,mw,mz,mh,` `& ebeam,ih1,ih2,` `& ihrd,itopprc,` `& nw,nz,nh,nph,` `& ihvy,ihvy2,` `& npart,ndns,pdftyp` `c general parameters` `integer nparam` `parameter (nparam=200)` `integer parlen,partyp` `character chpar8,chpdes70` `double precision parval` `common/AHpars/parval(nparam),chpar(nparam),chpdes(nparam)` `$ ,parlen(nparam),partyp(nparam)` `c global event cuts` `double precision ptjmin,ptjmax,etajmax,drjmin,` `+ ptbmin,ptbmax,etabmax,drbmin,` `+ ptcmin,ptcmax,etacmax,drcmin,` `+ ptphmin,etaphmax,drphjmin,drphmin,drphlmin,` `+ ptlmin,etalmax,drlmin,metmin,mllmin,mllmax` `common/AHcuts/ptjmin,ptjmax,etajmax,drjmin,` `+ ptbmin,ptbmax,etabmax,drbmin,` `+ ptcmin,ptcmax,etacmax,drcmin,` `+ ptphmin,etaphmax,drphjmin,drphmin,drphlmin,` `+ ptlmin,etalmax,drlmin,metmin,mllmin,mllmax` `CHARACTER 3 CSHO` `C CALSIM AND JET VARIABLES` `INTEGER NCY,NCPHI` `DOUBLE PRECISION YCMIN,YCMAX,PI,ET,DELPHI,CPHCAL,SPHCAL,DELY,` `& CTHCAL,STHCAL` `PARAMETER (NCY=100)` `PARAMETER (NCPHI=60,PI=3.141593D0)` `COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),` `$ CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN` `$ ,YCMAX` `C` `INTEGER MAXNUP` `PARAMETER (MAXNUP=500)` `INTEGER IEND,INORAD` `COMMON/SHVETO/IEND,INORAD(MAXNUP)` `c` `C LOCAL VARIABLES` `INTEGER I,NTMP,IHEPMIN` `C USER ACCESS TO MATCHING PARAMETERS` `INTEGER IUSRMAT` `PARAMETER (IUSRMAT=1)` `C character512 CXpar` `C integer Ixpar` `C double precision RXpar` `C common /EXGPAR/ IXpar(100), RXpar(100), CXpar(100)` `C WRITE PARAMETER VALUES` `CALL AHSPAR` `IH1=1` `C CONVERT PDF TYPES` `CALL PDFCONVH(NDNS,NTMP,PDFTYP)` `C DEFINE RANGE FOR PARTONS TO BE USED IN MATCHING` `NLJETS=PARVAL(10) ! NJETS` `DO I=1,MAXNUP` `INORAD(I)=0` `ENDDO` `CALL ALSHCD(CSHO)` `IF(CSHO.EQ.'HER') THEN` `NPFST=149` `NPLST=149` `C HERWIG: ALL SHOWERS ORIGINATE FROM IHEP=6` `IEND=6` `C HERWIG: HEPEVT EVENT RECORD FOR FINAL STATE STARTS AT 7=6+1` `IHEPMIN=6` `ELSE` `NPFST=1` `NPLST=1` `C PYTHIA: ALL SHOWERS ORIGINATE FROM IHEP=O` `IEND=0` `C PYTHIA: HEPEVT EVENT RECORD FOR FINAL STATE STARTS AT 1=0+1` `IHEPMIN=0` `ENDIF` `IF(IHRD.LE.2) THEN` `C NLJETS=NPART-6` `NJSTART=4` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W` `INORAD(IHEPMIN+2+NLJETS+1)=1` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM HEAVY QUARK` `C PAIR` `INORAD(IHEPMIN+1)=1` `INORAD(IHEPMIN+2)=1` `ELSEIF(IHRD.LE.4) THEN` `C NLJETS=NPART-4` `NJSTART=2` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W` `IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0) THEN` `C ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0` `INORAD(IHEPMIN+NLJETS+1)=0` `ELSE` `INORAD(IHEPMIN+NLJETS+1)=1` `ENDIF` `ELSEIF(IHRD.EQ.5) THEN` `C NLJETS=NPART-3(NW+NZ)-NH-2` `NJSTART=2` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W` `IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0.AND.(NW+NZ+NH+NPH).EQ.1) THEN` `C ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0 AND NW+NZ+NH` `C +NPH=1` `INORAD(IHEPMIN+NLJETS+1)=0` `ELSE` `DO I=1,NW+NZ+NH+NPH` `INORAD(IHEPMIN+NLJETS+I)=1` `ENDDO` `ENDIF` `ELSEIF(IHRD.EQ.6) THEN` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM HEAVY QUARK` `C PAIR` `C NLJETS=NPART-8 (IHVY.EQ.6) NLJETS=NPART-4 (IHVY.LT.6)` `INORAD(IHEPMIN+1)=1` `INORAD(IHEPMIN+2)=1` `NJSTART=4` `NJLAST=155` `ELSEIF(IHRD.EQ.9) THEN` `C NLJETS=NPART-2` `NJSTART=2` `NJLAST=155` `ELSEIF(IHRD.EQ.10) THEN` `C NLJETS=NPART-4` `NJSTART=3` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W` `INORAD(IHEPMIN+NLJETS+1+1)=1` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE CHARM` `INORAD(IHEPMIN+1)=1` `ELSEIF(IHRD.EQ.11) THEN` `C NLJETS=NPART-2-NPH` `NJSTART=2` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING THE HARD PHOTONS` `DO I=1,NPH` `INORAD(IHEPMIN+NLJETS+I)=1` `ENDDO` `ELSEIF(IHRD.EQ.12) THEN` `C NLJETS=NPART-2-NH` `NJSTART=2` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING THE HIGGS DECAY PRODUCTS` `IF(NLJETS+NH.GT.1) THEN` `DO I=1,NH` `INORAD(IHEPMIN+NLJETS+I)=1` `ENDDO` `ELSE` `IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0) THEN` `C ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0` `INORAD(IHEPMIN+1)=0` `ELSE` `INORAD(IHEPMIN+NLJETS+1)=1` `ENDIF` `ENDIF` `ELSEIF(IHRD.EQ.14) THEN` `C NLJETS=NPART-4-NPH` `NJSTART=2` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W` `IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0.AND.NPH.EQ.0) THEN` `C ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0` `INORAD(IHEPMIN+NLJETS+1)=0` `ELSE` `INORAD(IHEPMIN+NLJETS+1)=1` `ENDIF` `ELSEIF(IHRD.EQ.15) THEN` `C NLJETS=NPART-6-NPH` `NJSTART=2` `NJLAST=155` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W` `INORAD(IHEPMIN+2+NLJETS+NPH+1)=1` `C DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM HEAVY QUARK` `C PAIR` `C NOTICE THAT HERE THE LIGHT JETS PRECEDE THE QQ PAIR` `INORAD(IHEPMIN+NLJETS+1)=1` `INORAD(IHEPMIN+NLJETS+2)=1` `ENDIF` `C` `C INPUT JET MATCHING CRITERIA` `C` `IF(ICKKW.EQ.1) THEN` `C WRITE(,) ' '` `C WRITE(,) 'INPUT 0 FOR INCLUSIVE JET SAMPLE, 1 FOR EXCLUSIVE'` `C WRITE(,) '(SELECT 0 FOR HIGHEST PARTON MULTIPLICITY SAMPLE)'` `C WRITE(,) '(SELECT 1 OTHERWISE)'` `C READ(,) IEXC` `C IEXC = IXpar(2)` `WRITE(,) ' IEXC = ',IEXC` `IF(NLJETS.GT.0) THEN` `WRITE(,) 'INPUT ET(CLUS), R(CLUS)'` `C ETCLUS=MAX(PTJMIN+5,1.2PTJMIN)` `C RCLUS=DRJMIN` `C WRITE(,) '(SUGGESTED VALUES:',ETCLUS,RCLUS,')'` `C READ(,) ETCLUS,RCLUS,ETACLMAX` `C ETCLUS = RXpar(1)` `C RCLUS = RXpar(2)` `ETACLMAX = ETAJMAX` `ELSEIF(NLJETS.EQ.0) THEN` `WRITE(,) 'INPUT ET(CLUS), R(CLUS)'` `WRITE(,) '(MUST MATCH VALUES USED IN PROCESSING',` `+ ' OF NJET>0 EVENTS; THESE DEFAULT TO:'` `WRITE(,)` `+ 'ETCLUS=MAX(PTJMIN+5,1.2PTJMIN) RCLUS=DRJMIN, ',` `+ ' ETACLMAX=ETAJMAX)'` `C READ(,) ETCLUS,RCLUS,ETACLMAX` `C ETCLUS = RXpar(1)` `C RCLUS = RXpar(2)` `ETACLMAX = ETAJMAX` `ENDIF` `WRITE(,) ' '` `WRITE(,) 'JET PARAMETERS FOR MATCHING:'` `WRITE(,) 'ET >',ETCLUS,' ETACLUS <',ETACLMAX,' R =',RCLUS` `WRITE(,) 'DR(PARTON-JET) <',1.5RCLUS` `ENDIF` `C` `C CALORIMETER ETA RANGE` `C YCMAX=ETAJMAX+DRJMIN` `YCMAX=ETACLMAX+RCLUS ! MLM August 24` `YCMIN=-YCMAX` `END` `c-------------------------------------------------------------------` `subroutine AHspar` `c set list of parameters types and assign default values` `c-------------------------------------------------------------------` `implicit none` `c process code` `integer ihrd` `integer itopprc` `c--event file data` `integer Nunit,NunitOut,NunitIni` `character512 filename` `c total number of input events` `common/AHio/Nunit,NunitOut,NunitIni,filename` `c inputs for the matching algorithm` `integer iexc,npfst,nplst,nljets,njstart,njlast` `$ ,ickkw` `double precision etclus,rclus,etaclmax` `common/AHopts/etclus,rclus,etaclmax,iexc,npfst` `$ ,nplst,nljets,njstart,njlast,ickkw` `c process and particles parameters` `double precision mc,mb,mt,mw,mz,mh` `double precision ebeam` `integer ndns,ih1,ih2` `integer nw,nz,nh,nph` `integer ihvy,ihvy2` `c pdf set type` `character pdftyp25` `c total number of partons` `integer npart` `common/AHppara/mc,mb,mt,mw,mz,mh,` `& ebeam,ih1,ih2,` `& ihrd,itopprc,` `& nw,nz,nh,nph,` `& ihvy,ihvy2,` `& npart,ndns,pdftyp` `c weight information` `real 8 maxwgt,avgwgt,errwgt,totlum` `integer unwev` `common/AHwgts/maxwgt,avgwgt,errwgt,totlum,unwev` `c general parameters` `integer nparam` `parameter (nparam=200)` `integer parlen,partyp` `character chpar8,chpdes70` `double precision parval` `common/AHpars/parval(nparam),chpar(nparam),chpdes(nparam)` `$ ,parlen(nparam),partyp(nparam)` `c global event cuts` `double precision ptjmin,ptjmax,etajmax,drjmin,` `+ ptbmin,ptbmax,etabmax,drbmin,` `+ ptcmin,ptcmax,etacmax,drcmin,` `+ ptphmin,etaphmax,drphjmin,drphmin,drphlmin,` `+ ptlmin,etalmax,drlmin,metmin,mllmin,mllmax` `common/AHcuts/ptjmin,ptjmax,etajmax,drjmin,` `+ ptbmin,ptbmax,etabmax,drbmin,` `+ ptcmin,ptcmax,etacmax,drcmin,` `+ ptphmin,etaphmax,drphjmin,drphmin,drphlmin,` `+ ptlmin,etalmax,drlmin,metmin,mllmin,mllmax` `c` `ih2=parval(2)` `ebeam=parval(3)` `ndns=parval(4)` `ickkw=parval(7)` `ihvy=parval(11)` `ihvy2=parval(12)` `nw=parval(13)` `nz=parval(14)` `nh=parval(15)` `nph=parval(16)` `ptjmin=parval(30)` `ptbmin=parval(31)` `ptcmin=parval(32)` `ptlmin=parval(33)` `metmin=parval(34)` `ptphmin=parval(35)` `etajmax=parval(40)` `etabmax=parval(41)` `etacmax=parval(42)` `etalmax=parval(43)` `etaphmax=parval(44)` `drjmin=parval(50)` `drbmin=parval(51)` `drcmin=parval(52)` `drlmin=parval(55)` `drphjmin=parval(56)` `drphlmin=parval(57)` `drphmin=parval(58)` `mllmin=parval(61)` `mllmax=parval(62)` `itopprc=parval(102)` `c` `end` `c-------------------------------------------------------------------` `subroutine pdfconvH(nin,nout,type)` `c-------------------------------------------------------------------` `c converts ALPHA convention for PDF namings to hvqpdf conventions` `implicit none` `integer nin,nout` `character25 type` `character25 pdftyp(20,2)` `data pdftyp/` `c cteq sets` `$ 'CTEQ4M ','CTEQ4L ','CTEQ4HJ',` `$ 'CTEQ5M ','CTEQ5L ','CTEQ5HJ',` `$ 'CTEQ6M ','CTEQ6L ',12' ',` `C MRST SETS` `$ 'MRST99 ',` `$ 'MRST01; as=0.119','MRST01; as=0.117','MRST01; as=0.121'` `$ ,'MRST01J; as=0.121','MRST02LO',14' '/` `integer pdfmap(20,2)` `data pdfmap/` `$ 81,83,88, 101,103, 104, 131,133, 120,` `$ 111, 185,186,187,188,189, 140/` `c` `nout=pdfmap(mod(nin ,100),1+nin /100)` `type=pdftyp(mod(nin ,100),1+nin /100)` `end` `C-----------------------------------------------------------------------` `C----Calorimeter simulation obtained from Frank Paige 23 March 1988-----` `C` `C USE` `C` `C CALL CALINI` `C CALL CALSIM` `C` `C THEN TO FIND JETS WITH A SIMPLIFIED VERSION OF THE UA1 JET` `C ALGORITHM WITH JET RADIUS RJET AND MINIMUM SCALAR TRANSVERSE` `C ENERGY EJCUT` `C (RJET=1., EJCUT=5. FOR UA1)` `C USE` `C` `C CALL GETJET(RJET,EJCUT)` `C` `C` `C-----------------------------------------------------------------------` `C` `C ADDED BY MIKE SEYMOUR: PARTON-LEVEL CALORIMETER. ALL PARTONS` `C ARE CONSIDERED TO BE HADRONS, SO IN FACT RESEM IS IGNORED` `C` `C CALL CALPAR` `C` `C HARD PARTICLE CALORIMETER. ONLY USES THOSE PARTICLES WHICH` `C CAME FROM THE HARD PROCESS, AND NOT THE UNDERLYING EVENT` `C` `C CALL CALHAR` `C` `C-----------------------------------------------------------------------` `SUBROUTINE CALINI_ALPGEN` `C` `C INITIALIZE CALORIMETER FOR CALSIM AND GETJET. NOTE THAT` `C BECAUSE THE INITIALIZATION IS SEPARATE, CALSIM CAN BE` `C CALLED MORE THAN ONCE TO SIMULATE PILEUP OF SEVERAL EVENTS.` `C` `IMPLICIT NONE` `INTEGER NCY,NCPHI,NJMAX,IPHI,IY,JETNO,NCJET` `DOUBLE PRECISION YCMIN,YCMAX,PI,ET,DELPHI,PHIX,CPHCAL,SPHCAL,DELY,` `& YX,THX,CTHCAL,STHCAL,PCJET,ETJET` `PARAMETER (NCY=100)` `PARAMETER (NCPHI=60,PI=3.141593D0)` `COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),` `$CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN,YCMAX` `PARAMETER (NJMAX=500)` `COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET` `LOGICAL FSTCAL` `DATA FSTCAL/.TRUE./` `C` `C INITIALIZE ET ARRAY.` `DO 100 IPHI=1,NCPHI` `DO 100 IY=1,NCY` `100 ET(IY,IPHI)=0.` `C` `IF (FSTCAL) THEN` `C CALCULATE TRIG. FUNCTIONS.` `DELPHI=2.PI/FLOAT(NCPHI)` `DO 200 IPHI=1,NCPHI` `PHIX=DELPHI(IPHI-.5)` `CPHCAL(IPHI)=COS(PHIX)` `SPHCAL(IPHI)=SIN(PHIX)` `200 CONTINUE` `DELY=(YCMAX-YCMIN)/FLOAT(NCY)` `DO 300 IY=1,NCY` `YX=DELY(IY-.5)+YCMIN` `THX=2.ATAN(EXP(-YX))` `CTHCAL(IY)=COS(THX)` `STHCAL(IY)=SIN(THX)` `300 CONTINUE` `FSTCAL=.FALSE.` `ENDIF` `END` `C` `SUBROUTINE CALSIM_ALPGEN` `C` `C SIMPLE CALORIMETER SIMULATION. ASSUME UNIFORM Y AND PHI` `C BINS` `C...HEPEVT commonblock.` `INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP` `PARAMETER (NMXHEP=4000)` `COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),` `&JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)` `DOUBLE PRECISION PHEP,VHEP` `SAVE /HEPEVT/` `INTEGER NCY,NCPHI,NJMAX,IHEP,ID,IY,IPHI,JETNO,NCJET` `DOUBLE PRECISION YCMIN,YCMAX,PI,YIP,PSERAP,` `& PHIIP,DELY,DELPHI,EIP,ET,STHCAL,CTHCAL,CPHCAL,SPHCAL,` `& PCJET,ETJET` `PARAMETER (NCY=100)` `PARAMETER (NCPHI=60,PI=3.141593D0)` `COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),` `$CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN,YCMAX` `PARAMETER (NJMAX=500)` `COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET` `C` `C FILL CALORIMETER` `C` `DO 200 IHEP=1,NHEP` `IF (ISTHEP(IHEP).EQ.1) THEN` `YIP=PSERAP(PHEP(1,IHEP))` `IF(YIP.LT.YCMIN.OR.YIP.GT.YCMAX) GOTO 200` `ID=ABS(IDHEP(IHEP))` `C---EXCLUDE TOP QUARK, LEPTONS, PROMPT PHOTONS` `IF ((ID.GE.11.AND.ID.LE.16).OR.ID.EQ.6.OR.ID.EQ.22) GOTO 200` `C` `PHIIP=ATAN2(PHEP(2,IHEP),PHEP(1,IHEP))` `IF(PHIIP.LT.0.) PHIIP=PHIIP+2.PI` `IY=INT((YIP-YCMIN)/DELY)+1` `IPHI=INT(PHIIP/DELPHI)+1` `EIP=PHEP(4,IHEP)` `C WEIGHT BY SIN(THETA)` `ET(IY,IPHI)=ET(IY,IPHI)+EIPSTHCAL(IY)` `ENDIF` `200 CONTINUE` `END` `SUBROUTINE GETJET_ALPGEN(RJET,EJCUT,ETAJCUT)` `C` `C SIMPLE JET-FINDING ALGORITHM (SIMILAR TO UA1).` `C` `C FIND HIGHEST REMAINING CELL > ETSTOP AND SUM SURROUNDING` `C CELLS WITH--` `C DELTA(Y)2+DELTA(PHI)2<RJET*2` `C ET>ECCUT.` `C KEEP JETS WITH ET>EJCUT AND ABS(ETA)<ETAJCUT` `C THE UA1 PARAMETERS ARE RJET=1.0 AND EJCUT=5.0` `C` `IMPLICIT NONE` `INTEGER NCY,NCPHI,NJMAX,IPHI,IY,JETNO,J,K,NCJET,NPHI1,NPHI2,NY1,` `& NY2,IPASS,IYMX,IPHIMX,ITLIS,IPHI1,IPHIX,IY1,IYX` `DOUBLE PRECISION YCMIN,YCMAX,PI,ETJET,PCJET,RJET,DELPHI,DELY,` `& ETMAX,ET,ETSTOP,RR,ECCUT,PX,STHCAL,CPHCAL,SPHCAL,CTHCAL,EJCUT` `PARAMETER (NCY=100)` `PARAMETER (NCPHI=60,PI=3.141593D0)` `COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),` `&CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN,YCMAX` `PARAMETER (NJMAX=500)` `COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET` `DOUBLE PRECISION ETAJCUT,PSERAP` `C` `C PARAMETERS` `DATA ECCUT/0.1D0/` `DATA ETSTOP/1.5D0/` `DATA ITLIS/6/` `C` `C INITIALIZE` `C` `c fix complains on uninit variables` `iymx = 0` `iphimx = 0` `c` `DO 100 IPHI=1,NCPHI` `DO 100 IY=1,NCY` `100 JETNO(IY,IPHI)=0` `DO 110 J=1,NJMAX` `ETJET(J)=0.` `DO 110 K=1,4` `110 PCJET(K,J)=0.` `NCJET=0` `NPHI1=RJET/DELPHI` `NPHI2=2NPHI1+1` `NY1=RJET/DELY` `NY2=2NY1+1` `IPASS=0` `C` `C FIND HIGHEST CELL REMAINING` `C` `1 ETMAX=0.` `DO 200 IPHI=1,NCPHI` `DO 210 IY=1,NCY` `IF(ET(IY,IPHI).LT.ETMAX) GOTO 210` `IF(JETNO(IY,IPHI).NE.0) GOTO 210` `ETMAX=ET(IY,IPHI)` `IYMX=IY` `IPHIMX=IPHI` `210 CONTINUE` `200 CONTINUE` `IF(ETMAX.LT.ETSTOP) RETURN` `C` `C SUM CELLS` `C` `IPASS=IPASS+1` `IF(IPASS.GT.NCYNCPHI) THEN` `WRITE(ITLIS,8888) IPASS` `8888 FORMAT(//' ERROR IN GETJET_ALPGEN...IPASS > ',I6)` `RETURN` `ENDIF` `NCJET=NCJET+1` `IF(NCJET.GT.NJMAX) THEN` `WRITE(ITLIS,9999) NCJET` `9999 FORMAT(//' ERROR IN GETJET_ALPGEN...NCJET > ',I5)` `RETURN` `ENDIF` `DO 300 IPHI1=1,NPHI2` `IPHIX=IPHIMX-NPHI1-1+IPHI1` `IF(IPHIX.LE.0) IPHIX=IPHIX+NCPHI` `IF(IPHIX.GT.NCPHI) IPHIX=IPHIX-NCPHI` `DO 310 IY1=1,NY2` `IYX=IYMX-NY1-1+IY1` `IF(IYX.LE.0) GOTO 310` `IF(IYX.GT.NCY) GOTO 310` `IF(JETNO(IYX,IPHIX).NE.0) GOTO 310` `RR=(DELY(IY1-NY1-1))2+(DELPHI(IPHI1-NPHI1-1))2` `IF(RR.GT.RJET2) GOTO 310` `IF(ET(IYX,IPHIX).LT.ECCUT) GOTO 310` `PX=ET(IYX,IPHIX)/STHCAL(IYX)` `C ADD CELL TO JET` `PCJET(1,NCJET)=PCJET(1,NCJET)+PXSTHCAL(IYX)CPHCAL(IPHIX)` `PCJET(2,NCJET)=PCJET(2,NCJET)+PXSTHCAL(IYX)SPHCAL(IPHIX)` `PCJET(3,NCJET)=PCJET(3,NCJET)+PXCTHCAL(IYX)` `PCJET(4,NCJET)=PCJET(4,NCJET)+PX` `ETJET(NCJET)=ETJET(NCJET)+ET(IYX,IPHIX)` `JETNO(IYX,IPHIX)=NCJET` `310 CONTINUE` `300 CONTINUE` `C` `C DISCARD JET IF ET < EJCUT.` `C` `IF(ETJET(NCJET).GT.EJCUT.AND.ABS(PSERAP(PCJET(1,NCJET))).LT` `$ .ETAJCUT) GOTO 1` `ETJET(NCJET)=0.` `DO 400 K=1,4` `400 PCJET(K,NCJET)=0.` `NCJET=NCJET-1` `GOTO 1` `END` `C-----------------------------------------------------------------------` `SUBROUTINE CALDEL_ALPGEN(ISTLO,ISTHI,ISTOP)` `C LABEL ALL PARTICLES WITH STATUS BETWEEN ISTLO AND ISTHI (UNTIL A` `C PARTICLE WITH STATUS ISTOP IS FOUND) AS FINAL-STATE, CALL CALSIM` `C AND THEN PUT LABELS BACK TO NORMAL` `C` `C THIS VERSION LEAVES OUT PARTICLES THAT POINT BACK TO MOTHERS TO BE` `C LEFT OUT OF MATCHING` `C-----------------------------------------------------------------------` `IMPLICIT NONE` `INTEGER MAXNUP` `PARAMETER(MAXNUP=500)` `INTEGER IEND,INORAD` `COMMON/SHVETO/IEND,INORAD(MAXNUP)` `C...HEPEVT commonblock.` `INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP` `PARAMETER (NMXHEP=4000)` `COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),` `&JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)` `DOUBLE PRECISION PHEP,VHEP` `SAVE /HEPEVT/` `INTEGER ISTOLD(NMXHEP),IHEP,IST,ISTLO,ISTHI,ISTOP,IMO` `LOGICAL FOUND` `c write(3,) 'new event',nevhep` `FOUND=.FALSE.` `DO 10 IHEP=1,NHEP` `IST=ISTHEP(IHEP)` `ISTOLD(IHEP)=IST` `IF (IST.EQ.ISTOP) FOUND=.TRUE.` `IF (IST.GE.ISTLO.AND.IST.LE.ISTHI.AND..NOT.FOUND) THEN` `C FOUND A RADIATED PARTON, CHECK MOTHER` `IMO=IHEP` `1 IMO=JMOHEP(1,IMO)` `IF(IMO.EQ.IEND) THEN` `C PARENTHOOD OK` `IST=1` `c write(3,) ihep,ist` `GOTO 9` `ENDIF` `IF(INORAD(IMO).EQ.1) THEN` `C PARTON COMES FROM A VETOED MOTHER` `IST=0` `GOTO 9` `ELSE` `C CHECK GRANDMOTHER` `GOTO 1` `ENDIF` `ELSE` `IST=0` `ENDIF` `9 ISTHEP(IHEP)=IST` `10 CONTINUE` `C PRINT PARTICLE STATUS FOR THE CALORIMETER SIMULATION.` `C (UNCOMMENT TO MAKE IT WORK)` `C MUST BE LINKED WITH alpg_debug.F IN AlpgenInterface` `C CALL DBCAL` `CALL CALSIM_ALPGEN` `DO 20 IHEP=1,NHEP` `ISTHEP(IHEP)=ISTOLD(IHEP)` `20 CONTINUE` `END` `C-----------------------------------------------------------------------` `SUBROUTINE CALDEL_ALPGEN_HVQ(ISTLO,ISTHI,ISTOP)` `C LABEL ALL PARTICLES WITH STATUS BETWEEN ISTLO AND ISTHI (UNTIL A` `C PARTICLE WITH STATUS ISTOP IS FOUND) AS FINAL-STATE, CALL CALSIM` `C AND THEN PUT LABELS BACK TO NORMAL` `C` `C THIS VERSION KEEPS ONLY ALL IST=1 PARTICLES REJECTED BY CALDEL AS` `C DAUGHTERS OF VETOED HEAVY-QUARK MOTHERS: JETS COMPLEMENTARY TO` `C THOSE RECONSTRUCTED BY CALDEL` `C-----------------------------------------------------------------------` `IMPLICIT NONE` `INTEGER MAXNUP` `PARAMETER(MAXNUP=500)` `INTEGER IEND,INORAD` `COMMON/SHVETO/IEND,INORAD(MAXNUP)` `C...HEPEVT commonblock.` `INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP` `PARAMETER (NMXHEP=4000)` `COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),` `&JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)` `DOUBLE PRECISION PHEP,VHEP` `SAVE /HEPEVT/` `INTEGER ISTOLD(NMXHEP),IHEP,IST,ISTLO,ISTHI,ISTOP,IMO` `INTEGER IDMOTH,IDDAUG` `LOGICAL FOUND` `FOUND=.FALSE.` `C TAG W-B FROM TOP DECAYS` `DO IHEP=1,NHEP` `IMO=JMOHEP(1,IHEP)` `IDMOTH=ABS(IDHEP(IMO))` `IDDAUG=ABS(IDHEP(IHEP))` `IF(IDMOTH.EQ.6.AND.(IDDAUG.EQ.5.OR.IDDAUG.EQ.24)) INORAD(IHEP)=2` `ENDDO` `C` `DO 10 IHEP=1,NHEP` `IST=ISTHEP(IHEP)` `ISTOLD(IHEP)=IST` `IF (IST.EQ.ISTOP) FOUND=.TRUE.` `IF (IST.GE.ISTLO.AND.IST.LE.ISTHI.AND..NOT.FOUND) THEN` `C FOUND A RADIATED PARTON, CHECK MOTHER` `IMO=IHEP` `1 IMO=JMOHEP(1,IMO)` `IF(IMO.EQ.IEND) THEN` `C PARENTHOOD OK, VETO` `IST=0` `GOTO 9` `ENDIF` `IF(INORAD(IMO).EQ.1) THEN` `IDMOTH=ABS(IDHEP(IMO))` `IDDAUG=ABS(IDHEP(IHEP))` `C VERIFY IT'S A HEAVY QUARK -- LEAVE OUT GAUGE BOSON DECAYS` `IF(IDMOTH.GE.4.AND.IDMOTH.LE.6) THEN` `C PARTON COMES FROM A VETOED MOTHER, KEEP UNLESS IT IS THE EVOLVED` `C MOTHER` `IF(IDMOTH.NE.IDDAUG) THEN` `IST=1` `GOTO 9` `ELSE` `IST=0` `ENDIF` `ELSE` `C NOT A HEAVY QUARK MOTHER, LEAVE OUT OF JET RECONSUTRCTION` `IST=0` `ENDIF` `ELSEIF(INORAD(IMO).EQ.2) THEN` `C IT'S A TOP DECAY PRODUCT` `IST=0` `ELSE` `C GO CHECK GRANDMOTHER` `GOTO 1` `ENDIF` `ELSE` `IST=0` `ENDIF` `9 ISTHEP(IHEP)=IST` `10 CONTINUE` `CALL CALSIM_ALPGEN` `DO 20 IHEP=1,NHEP` `ISTHEP(IHEP)=ISTOLD(IHEP)` `20 CONTINUE` `END` `c$$$C-----------------------------------------------------------------------` `c$$$ FUNCTION PSERAP(P)` `c$$$C PSEUDO-RAPIDITY (-LOG TAN THETA/2)` `c$$$C-----------------------------------------------------------------------` `c$$$ DOUBLE PRECISION PSERAP,P(3),PT,PL,TINY,THETA` `c$$$ PARAMETER (TINY=1D-3)` `c$$$ PT=SQRT(P(1)2+P(2)2)+TINY` `c$$$ PL=P(3)` `c$$$ THETA=ATAN2(PT,PL)` `c$$$ PSERAP=-LOG(TAN(0.5THETA))` `c$$$ END` `c$$$C-----------------------------------------------------------------------` `c$$$C-----------------------------------------------------------------------` `c$$$ SUBROUTINE ALPSOR(A,N,K,IOPT)` `c$$$C-----------------------------------------------------------------------` `c$$$C Sort A(N) into ascending order` `c$$$C IOPT = 1 : return sorted A and index array K` `c$$$C IOPT = 2 : return index array K only` `c$$$C-----------------------------------------------------------------------` `c$$$ DOUBLE PRECISION A(N),B(5000)` `c$$$ INTEGER N,I,J,IOPT,K(N),IL(5000),IR(5000)` `c$$$ IF (N.GT.5000) then` `c$$$ write(,) 'Too many entries to sort in alpsrt, stop'` `c$$$ stop` `c$$$ endif` `c$$$ if(n.le.0) return` `c$$$ IL(1)=0` `c$$$ IR(1)=0` `c$$$ DO 10 I=2,N` `c$$$ IL(I)=0` `c$$$ IR(I)=0` `c$$$ J=1` `c$$$ 2 IF(A(I).GT.A(J)) GOTO 5` `c$$$ 3 IF(IL(J).EQ.0) GOTO 4` `c$$$ J=IL(J)` `c$$$ GOTO 2` `c$$$ 4 IR(I)=-J` `c$$$ IL(J)=I` `c$$$ GOTO 10` `c$$$ 5 IF(IR(J).LE.0) GOTO 6` `c$$$ J=IR(J)` `c$$$ GOTO 2` `c$$$ 6 IR(I)=IR(J)` `c$$$ IR(J)=I` `c$$$ 10 CONTINUE` `c$$$ I=1` `c$$$ J=1` `c$$$ GOTO 8` `c$$$ 20 J=IL(J)` `c$$$ 8 IF(IL(J).GT.0) GOTO 20` `c$$$ 9 K(I)=J` `c$$$ B(I)=A(J)` `c$$$ I=I+1` `c$$$` `c$$$C Compatibility with gfortran (CMSSW 3_X)` `c$$$C IF(IR(J)) 12,30,13` `c$$$C 13 J=IR(J)` `c$$$C GOTO 8` `c$$$C 12 J=-IR(J)` `c$$$C GOTO 9` `c$$$C 30 IF(IOPT.EQ.2) RETURN` `c$$$` `c$$$ IF (IR(J).GT.0) THEN` `c$$$ J=IR(J)` `c$$$ GOTO 8` `c$$$ ELSEIF (IR(J).LT.0) then` `c$$$ J=-IR(J)` `c$$$ GOTO 9` `c$$$ ENDIF` `c$$$ IF (IOPT.EQ.2) RETURN` `c$$$` `c$$$ DO 31 I=1,N` `c$$$ 31 A(I)=B(I)` `c$$$ 999 END` `C-----------------------------------------------------------------------` `subroutine getunit(n)` `implicit none` `integer n,i` `logical yes` `WRITE(,)'CALLED GETUNIT'` `do i=10,100` `inquire(unit=i,opened=yes)` `if(.not.yes) goto 10` `enddo` `write(,) 'no free units to write to available, stop'` `stop` `10 n=i` `end`

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*-- AUTHOR :    MICHELANGELO MANGANO
C----------------------------------------------------------------------
      SUBROUTINE ALVETO(IPVETO)
C----------------------------------------------------------------------
C     SUBROUTINE TO IMPLEMENT THE MLM JET MATCHING CRITERION
C----------------------------------------------------------------------
      IMPLICIT NONE
C...GUP EVENT COMMON BLOCK
      INTEGER MAXNUP
      PARAMETER (MAXNUP=500)
      INTEGER NUP,IDPRUP,IDUP,ISTUP,MOTHUP,ICOLUP
      DOUBLE PRECISION XWGTUP,SCALUP,AQEDUP,AQCDUP,PUP,VTIMUP,SPINUP
      COMMON/HEPEUP/NUP,IDPRUP,XWGTUP,SCALUP,AQEDUP,AQCDUP,
     &              IDUP(MAXNUP),ISTUP(MAXNUP),MOTHUP(2,MAXNUP),
     &              ICOLUP(2,MAXNUP),PUP(5,MAXNUP),VTIMUP(MAXNUP),
     &              SPINUP(MAXNUP)
C...HEPEVT COMMONBLOCK.
      INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP
      PARAMETER (NMXHEP=4000)
      COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),
     &JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)
      DOUBLE PRECISION PHEP,VHEP
      SAVE /HEPEVT/
c process code
      integer ihrd
      integer itopprc
c--event file data
      integer Nunit,NunitOut,NunitIni
      character*512 filename
c total number of input events
      common/AHio/Nunit,NunitOut,NunitIni,filename
c inputs for the matching algorithm
      integer iexc,npfst,nplst,nljets,njstart,njlast
     $     ,ickkw
      double precision etclus,rclus,etaclmax
      common/AHopts/etclus,rclus,etaclmax,iexc,npfst
     $     ,nplst,nljets,njstart,njlast,ickkw
c process and particles parameters
      double precision mc,mb,mt,mw,mz,mh
      double precision ebeam
      integer ndns,ih1,ih2       
      integer nw,nz,nh,nph
      integer ihvy,ihvy2
c pdf set type
      character pdftyp*25
c total number of partons
      integer npart
      common/AHppara/mc,mb,mt,mw,mz,mh,
     & ebeam,ih1,ih2,
     & ihrd,itopprc,
     & nw,nz,nh,nph,
     & ihvy,ihvy2,
     & npart,ndns,pdftyp
c weight information
      real *8 maxwgt,avgwgt,errwgt,totlum
      integer unwev
      common/AHwgts/maxwgt,avgwgt,errwgt,totlum,unwev
c general parameters
      integer nparam
      parameter (nparam=200)
      integer parlen,partyp
      character chpar*8,chpdes*70
      double precision parval
      common/AHpars/parval(nparam),chpar(nparam),chpdes(nparam)
     $     ,parlen(nparam),partyp(nparam)
c global event cuts
      double precision ptjmin,ptjmax,etajmax,drjmin,
     +     ptbmin,ptbmax,etabmax,drbmin,
     +     ptcmin,ptcmax,etacmax,drcmin,
     +     ptphmin,etaphmax,drphjmin,drphmin,drphlmin,
     +     ptlmin,etalmax,drlmin,metmin,mllmin,mllmax
      common/AHcuts/ptjmin,ptjmax,etajmax,drjmin,
     +     ptbmin,ptbmax,etabmax,drbmin,
     +        ptcmin,ptcmax,etacmax,drcmin,
     +        ptphmin,etaphmax,drphjmin,drphmin,drphlmin,
     +        ptlmin,etalmax,drlmin,metmin,mllmin,mllmax
      INTEGER IPVETO
C     CALSIM AND JET VARIABLES                             
      INTEGER NCY,NCPHI,NJMAX,JETNO,NCJET
      DOUBLE PRECISION YCMIN,YCMAX,PI,ET,DELPHI,CPHCAL,SPHCAL,DELY,
     &     CTHCAL,STHCAL,PCJET,ETJET
      PARAMETER (NCY=100)
      PARAMETER (NCPHI=60,PI=3.141593D0)
      COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),
     $     CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN
     $     ,YCMAX
      PARAMETER (NJMAX=500)
      COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET
C     
      DOUBLE PRECISION PSERAP
      INTEGER K(NJMAX),KP(NJMAX),KPJ(NJMAX)
C LOCAL VARIABLES
      INTEGER I,J,IHEP,NMATCH,JRMIN
      DOUBLE PRECISION ETAJET,PHIJET,DELR,DPHI,DELRMIN
      DOUBLE PRECISION P(4,10),PT(10),ETA(10),PHI(10)
C HEAVY QUARK MATCHING
      INTEGER IHVQ(10),NHVQ,NMJET,ID
      DOUBLE PRECISION ETAHVQ(10),PHIHVQ(10)
      INTEGER IEND,INORAD
      COMMON/SHVETO/IEND,INORAD(MAXNUP)
      
C DEBUGGING OPTIONS
      INTEGER IDBG
      PARAMETER (IDBG=0)
      DOUBLE PRECISION PTPART,PTJETS,ETAPART,ETAJETS
      INTEGER NMAX
      COMMON/MTCHDBG/PTPART(10),PTJETS(10),ETAPART(10),ETAJETS(10),NMAX
C
      DOUBLE PRECISION ETMIN,ETMAX
      DOUBLE PRECISION TINY
      PARAMETER (TINY=1D-3)
      INTEGER ICOUNT
      DATA ICOUNT/0/
C
      IPVETO=0
      IF(ICKKW.EQ.0) RETURN
      IF(IHRD.EQ.7.OR.IHRD.EQ.8.OR.IHRD.EQ.13) THEN
        WRITE(*,*) 'JET MATCHING FOR HARD PROCESS ',IHRD
     $       ,' NOT IMPLEMENTED, STOP'
        STOP
      ENDIF
      IF(NLJETS.EQ.0.AND.IEXC.EQ.0) RETURN
C CHECK FOR EVENT ERROR OR ZERO WGT
      I=0
C     HERWIG/PYTHIA SPECIFIC
C     CALL ALSHER(I)
      IF(I.EQ.1) RETURN

c init uninit variables
      jrmin = 0
      etmin = 0.
C
C     INITIALIZE DEBUG IF NEEDED
      IF(IDBG.EQ.1) THEN
        WRITE(1,*) ' '
        WRITE(1,*) 'NEW EVENT '
        WRITE(1,*) 'PARTONS'
      ENDIF
      IF(IDBG.EQ.2) THEN
        DO I=1,10
          PTPART(I)=0D0
          ETAPART(I)=0D0
          PTJETS(I)=0D0
          ETAJETS(I)=0D0
        ENDDO
        NMAX=0
      ENDIF
C
C     RECONSTRUCT PARTON-LEVEL EVENT
C     START FROM THE PARTONIC SYSTEM
C     NOTICE THAT THIS INFO COMES FROM THE HEPEUP
      DO I=1,NLJETS
        IHEP=I+NJSTART
        DO J=1,4
          P(J,I)=PUP(J,IHEP)
        ENDDO
        PT(I)=SQRT(P(1,I)**2+P(2,I)**2)
        ETA(I)=-LOG(TAN(0.5D0*ATAN2(PT(I)+TINY,P(3,I))))
        PHI(I)=ATAN2(P(2,I),P(1,I))
        IF(IDBG.EQ.1) THEN
          WRITE(1,*) PT(I),ETA(I),PHI(I)
        ENDIF
      ENDDO
      IF(NLJETS.GT.0) CALL ALPSOR(PT,NLJETS,KP,2)  
C     
C     DISPLAY EVENT SEEN BY UPVETO:
C     NOW THIS INFO COMES FROM THE HEPEVT
      IF(IDBG.EQ.1) THEN
        DO I=1,NHEP
          WRITE(1,111) I,ISTHEP(I),IDHEP(I),JMOHEP(1,I),JMOHEP(2,I)
     $         ,PHEP(1,I),PHEP(2,I),PHEP(3,I)
        ENDDO
 111    FORMAT(5(I4,1X),3(F12.5,1X))
      ENDIF
      
C     PRINT THE INORAD STATUS OF THE PARTICLES.
C     (UNCOMMENT TO MAKE IT WORK)
C     MUST BE LINKED WITH alpg_debug.F IN AlpgenInterface
C      CALL DBINRD

C     DISPLAY PYTHIA EVENT:
C      CALL PYLIST(7)    ! PYTHIA USER PROCESS EVENT DUMP
C      CALL PYLIST(2)    ! PYTHIA FULL EVENT DUMP
C      CALL PYLIST(5)    ! PYTHIA HEPEVT DUMP
C
C     RECONSTRUCT SHOWERED JETS:
      CALL CALINI_ALPGEN
      CALL CALDEL_ALPGEN(NPFST,NPLST,NJLAST)
      CALL GETJET_ALPGEN(RCLUS,ETCLUS,ETACLMAX)
      IF(NCJET.GT.0) CALL ALPSOR(ETJET,NCJET,K,2)              
      IF(IDBG.EQ.1) THEN
        WRITE(1,*) 'JETS'
        DO I=1,NCJET
          J=K(NCJET+1-I)
          ETAJET=PSERAP(PCJET(1,J))
          PHIJET=ATAN2(PCJET(2,J),PCJET(1,J))
          WRITE(1,*) ETJET(J),ETAJET,PHIJET
        ENDDO
      ENDIF
C     ANALYSE ONLY EVENTS WITH AT LEAST NLJETS-RECONSTRUCTED JETS
      IF(NCJET.LT.NLJETS) GOTO 999
C     ASSOCIATE PARTONS AND JETS, USING MIN(DELR) AS CRITERION
      NMATCH=0
      DO I=1,NCJET
        KPJ(I)=0
      ENDDO
      DO I=1,NLJETS
        DELRMIN=1D5
        DO 110 J=1,NCJET
          IF(KPJ(J).NE.0) GO TO 110
          ETAJET=PSERAP(PCJET(1,J))
          PHIJET=ATAN2(PCJET(2,J),PCJET(1,J))
          DPHI=ABS(PHI(KP(NLJETS-I+1))-PHIJET)
          IF(DPHI.GT.PI) DPHI=2.*PI-DPHI
          DELR=SQRT((ETA(KP(NLJETS-I+1))-ETAJET)**2+(DPHI)**2)
          IF(DELR.LT.DELRMIN) THEN
            DELRMIN=DELR
            JRMIN=J
          ENDIF
 110    CONTINUE
        ETMIN=1D10
        IF(DELRMIN.LT.1.5*RCLUS) THEN
          NMATCH=NMATCH+1
          KPJ(JRMIN)=I
          ETMIN=MIN(ETMIN,ETJET(JRMIN))
C     ASSOCIATE PARTONS AND MATCHED JETS:
          IF(IDBG.EQ.2) THEN
            PTPART(I)=PT(KP(NLJETS-I+1))
            ETAPART(I)=ETA(KP(NLJETS-I+1))
            PTJETS(I)=ETJET(JRMIN)
            ETAJETS(I)=PSERAP(PCJET(1,JRMIN))
            NMAX=NCJET
          ENDIF
C          WRITE(*,*) 'PARTON-JET',I,' BEST MATCH:',K(NCJET+1-JRMIN)
C     $           ,DELRMIN
        ENDIF
      ENDDO
      IF(NMATCH.LT.NLJETS) GOTO 999
C     REJECT EVENTS WITH LARGER JET MULTIPLICITY FROM EXCLUSIVE SAMPLE
      IF(NCJET.GT.NLJETS.AND.IEXC.EQ.1) GOTO 999
C     VETO EVENTS WHERE MATCHED JETS ARE SOFTER THAN NON-MATCHED ONES
      IF(IEXC.NE.1) THEN
        J=NCJET
        DO I=1,NLJETS
          IF(KPJ(K(J)).EQ.0) GOTO 999
          J=J-1
        ENDDO
      ENDIF
C
C     ADDITIONAL TREATMENT FOR HVQ EVENTS: VETO/ACCEPT JETS EMITTED BY HVQ'S
      IF(IHRD.LE.2.OR.IHRD.EQ.6.OR.IHRD.EQ.10.OR.IHRD.EQ.15) THEN
        CALL CALINI_ALPGEN
C     RECOSTRUCT POSSIBLE JETS FROM RADIATION OFF THE TOP QUARKS
        CALL CALDEL_ALPGEN_HVQ(NPFST,NPLST,NJLAST)
        CALL GETJET_ALPGEN(RCLUS,ETCLUS,ETACLMAX)
C     IF NO EXTRA JET: ACCEPT EVENT
        IF(NCJET.EQ.0) RETURN
C     IF EXTRA JETS, REMOVE THOSE LYING WITHIN DRJMIN OF A B/C QUARK, TO
C     ALLOW THE SHOWER TO GOVERN THE DEVELOPMENT OF A B/C JET.
C     START BY FLAGGING VETOED Q AND QBAR OBJECTS:
        NHVQ=0
        DO I=1,NHEP
          ID=IDHEP(I)
          IF(INORAD(I).EQ.1.AND.ABS(ID).LE.5.AND.ABS(ID)
     $         .GE.4) THEN
            NHVQ=NHVQ+1
            IHVQ(NHVQ)=I
            ETAHVQ(NHVQ)=PSERAP(PHEP(1,I))
            PHIHVQ(NHVQ)=ATAN2(PHEP(2,I),PHEP(1,I))
          ENDIF
        ENDDO
        NMJET=NCJET
        DO I=1,NCJET
          ETAJET=PSERAP(PCJET(1,I))
          PHIJET=ATAN2(PCJET(2,I),PCJET(1,I))
          DO J=1,NHVQ
            DPHI=ABS(PHIHVQ(J)-PHIJET)
            IF(DPHI.GT.PI) DPHI=ABS(DPHI-2*PI)
            DELR=SQRT(DPHI**2+(ETAJET-ETAHVQ(J))**2)
            IF(DELR.LT.DRJMIN) THEN
              NMJET=NMJET-1
              ETJET(I)=0D0
            ENDIF
          ENDDO
        ENDDO
C     IF NO UNMATCHED JET: ACCEPT EVENT
        IF(NMJET.EQ.0) RETURN
C     IF JETS AND IEXC=1: REJECT EVENT
        IF(IEXC.EQ.1) GOTO 999
C     IF JETS AND IEXC=0: CHECK THAT JETS ARE SOFTER THAN MATCHED ONES
        ETMAX=0D0
        DO I=1,NCJET
          ETMAX=MAX(ETMAX,ETJET(I))
        ENDDO
        IF(ETMAX.GT.ETMIN) GOTO 999
      ENDIF
      RETURN
C     HERWIG/PYTHIA TERMINATION:
 999  CALL ALSHEN
      IPVETO=1
      END


C----------------------------------------------------------------------
      SUBROUTINE ALSETP
C----------------------------------------------------------------------
C     EVENT INITIALITION ROUTINE THAT STARTS OFF FILLED COMMON BLOCKS
C----------------------------------------------------------------------
      IMPLICIT NONE
c process code
      integer ihrd
      integer itopprc
c inputs for the matching algorithm
      integer iexc,npfst,nplst,nljets,njstart,njlast
     $     ,ickkw
      double precision etclus,rclus,etaclmax
      common/AHopts/etclus,rclus,etaclmax,iexc,npfst
     $     ,nplst,nljets,njstart,njlast,ickkw
c process and particles parameters
      double precision mc,mb,mt,mw,mz,mh
      double precision ebeam
      integer ndns,ih1,ih2       
      integer nw,nz,nh,nph
      integer ihvy,ihvy2
c pdf set type
      character pdftyp*25
c total number of partons
      integer npart
      common/AHppara/mc,mb,mt,mw,mz,mh,
     & ebeam,ih1,ih2,
     & ihrd,itopprc,
     & nw,nz,nh,nph,
     & ihvy,ihvy2,
     & npart,ndns,pdftyp
c general parameters
      integer nparam
      parameter (nparam=200)
      integer parlen,partyp
      character chpar*8,chpdes*70
      double precision parval
      common/AHpars/parval(nparam),chpar(nparam),chpdes(nparam)
     $     ,parlen(nparam),partyp(nparam)
c global event cuts
      double precision ptjmin,ptjmax,etajmax,drjmin,
     +     ptbmin,ptbmax,etabmax,drbmin,
     +     ptcmin,ptcmax,etacmax,drcmin,
     +     ptphmin,etaphmax,drphjmin,drphmin,drphlmin,
     +     ptlmin,etalmax,drlmin,metmin,mllmin,mllmax
      common/AHcuts/ptjmin,ptjmax,etajmax,drjmin,
     +     ptbmin,ptbmax,etabmax,drbmin,
     +        ptcmin,ptcmax,etacmax,drcmin,
     +        ptphmin,etaphmax,drphjmin,drphmin,drphlmin,
     +        ptlmin,etalmax,drlmin,metmin,mllmin,mllmax
      CHARACTER *3 CSHO
C     CALSIM AND JET VARIABLES                             
      INTEGER NCY,NCPHI
      DOUBLE PRECISION YCMIN,YCMAX,PI,ET,DELPHI,CPHCAL,SPHCAL,DELY,
     &     CTHCAL,STHCAL
      PARAMETER (NCY=100)
      PARAMETER (NCPHI=60,PI=3.141593D0)
      COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),
     $     CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN
     $     ,YCMAX
C     
      INTEGER MAXNUP
      PARAMETER (MAXNUP=500)
      INTEGER IEND,INORAD
      COMMON/SHVETO/IEND,INORAD(MAXNUP)
c     
C     LOCAL VARIABLES
      INTEGER I,NTMP,IHEPMIN
C     USER ACCESS TO MATCHING PARAMETERS
      INTEGER IUSRMAT
      PARAMETER (IUSRMAT=1)
C      character*512                           CXpar
C      integer         Ixpar 
C      double precision            RXpar
C      common /EXGPAR/ IXpar(100), RXpar(100), CXpar(100)

C     WRITE PARAMETER VALUES
      CALL AHSPAR
      IH1=1
C     CONVERT PDF TYPES
      CALL PDFCONVH(NDNS,NTMP,PDFTYP)
C     DEFINE RANGE FOR PARTONS TO BE USED IN MATCHING
      NLJETS=PARVAL(10)     !  NJETS
      DO I=1,MAXNUP
        INORAD(I)=0
      ENDDO
      CALL ALSHCD(CSHO)
      IF(CSHO.EQ.'HER') THEN
        NPFST=149
        NPLST=149
C     HERWIG: ALL SHOWERS ORIGINATE FROM IHEP=6
        IEND=6
C     HERWIG: HEPEVT EVENT RECORD FOR FINAL STATE STARTS AT 7=6+1
        IHEPMIN=6
      ELSE
        NPFST=1
        NPLST=1
C     PYTHIA: ALL SHOWERS ORIGINATE FROM IHEP=O
        IEND=0
C     PYTHIA: HEPEVT EVENT RECORD FOR FINAL STATE STARTS AT 1=0+1
        IHEPMIN=0
      ENDIF
      IF(IHRD.LE.2) THEN
C        NLJETS=NPART-6
        NJSTART=4
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W
        INORAD(IHEPMIN+2+NLJETS+1)=1
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM HEAVY QUARK
C     PAIR
        INORAD(IHEPMIN+1)=1
        INORAD(IHEPMIN+2)=1
      ELSEIF(IHRD.LE.4) THEN
C        NLJETS=NPART-4
        NJSTART=2
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W
        IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0) THEN
C     ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0
          INORAD(IHEPMIN+NLJETS+1)=0
        ELSE 
          INORAD(IHEPMIN+NLJETS+1)=1
        ENDIF
      ELSEIF(IHRD.EQ.5) THEN
C        NLJETS=NPART-3*(NW+NZ)-NH-2
        NJSTART=2
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W
        IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0.AND.(NW+NZ+NH+NPH).EQ.1) THEN
C     ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0 AND NW+NZ+NH
C     +NPH=1
          INORAD(IHEPMIN+NLJETS+1)=0
        ELSE 
          DO I=1,NW+NZ+NH+NPH
            INORAD(IHEPMIN+NLJETS+I)=1
          ENDDO
        ENDIF
      ELSEIF(IHRD.EQ.6) THEN
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM HEAVY QUARK
C     PAIR
C     NLJETS=NPART-8  (IHVY.EQ.6)     NLJETS=NPART-4  (IHVY.LT.6)
        INORAD(IHEPMIN+1)=1
        INORAD(IHEPMIN+2)=1
        NJSTART=4
        NJLAST=155
      ELSEIF(IHRD.EQ.9) THEN
C     NLJETS=NPART-2
        NJSTART=2
        NJLAST=155
      ELSEIF(IHRD.EQ.10) THEN
C        NLJETS=NPART-4
        NJSTART=3
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W
        INORAD(IHEPMIN+NLJETS+1+1)=1
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE CHARM
        INORAD(IHEPMIN+1)=1
      ELSEIF(IHRD.EQ.11) THEN
C        NLJETS=NPART-2-NPH
        NJSTART=2
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING THE HARD PHOTONS
        DO I=1,NPH
          INORAD(IHEPMIN+NLJETS+I)=1
        ENDDO
      ELSEIF(IHRD.EQ.12) THEN
C        NLJETS=NPART-2-NH
        NJSTART=2
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING THE HIGGS DECAY PRODUCTS
        IF(NLJETS+NH.GT.1) THEN
          DO I=1,NH
            INORAD(IHEPMIN+NLJETS+I)=1
          ENDDO
        ELSE
          IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0) THEN
C     ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0
            INORAD(IHEPMIN+1)=0
          ELSE 
            INORAD(IHEPMIN+NLJETS+1)=1
          ENDIF
        ENDIF
      ELSEIF(IHRD.EQ.14) THEN
C        NLJETS=NPART-4-NPH
        NJSTART=2
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W
        IF(CSHO.EQ.'HER'.AND.NLJETS.EQ.0.AND.NPH.EQ.0) THEN
C     ALLOW RADIATION FROM IHEPMIN+1 IN HERWIG WHEN NJET=0
          INORAD(IHEPMIN+NLJETS+1)=0
        ELSE 
          INORAD(IHEPMIN+NLJETS+1)=1
        ENDIF
      ELSEIF(IHRD.EQ.15) THEN
C        NLJETS=NPART-6-NPH
        NJSTART=2
        NJLAST=155
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM THE W
        INORAD(IHEPMIN+2+NLJETS+NPH+1)=1
C     DO NOT INCLUDE IN MATCHING RADIATION ORIGINATING FROM HEAVY QUARK
C     PAIR
C     NOTICE THAT HERE THE LIGHT JETS PRECEDE THE QQ PAIR
        INORAD(IHEPMIN+NLJETS+1)=1
        INORAD(IHEPMIN+NLJETS+2)=1
      ENDIF
C
C     INPUT JET MATCHING CRITERIA
C
      IF(ICKKW.EQ.1) THEN
C       WRITE(*,*) ' '
C       WRITE(*,*) 'INPUT 0 FOR INCLUSIVE JET SAMPLE, 1 FOR EXCLUSIVE'
C       WRITE(*,*) '(SELECT 0 FOR HIGHEST PARTON MULTIPLICITY SAMPLE)' 
C       WRITE(*,*) '(SELECT 1 OTHERWISE)'
C       READ(*,*) IEXC
C       IEXC = IXpar(2)
        WRITE(*,*) ' IEXC = ',IEXC
        IF(NLJETS.GT.0) THEN
          WRITE(*,*) 'INPUT ET(CLUS), R(CLUS)'
C         ETCLUS=MAX(PTJMIN+5,1.2*PTJMIN)
C         RCLUS=DRJMIN
C         WRITE(*,*) '(SUGGESTED VALUES:',ETCLUS,RCLUS,')'
C         READ(*,*) ETCLUS,RCLUS,ETACLMAX
C         ETCLUS = RXpar(1)
C         RCLUS  = RXpar(2)
          ETACLMAX = ETAJMAX
        ELSEIF(NLJETS.EQ.0) THEN
          WRITE(*,*) 'INPUT ET(CLUS), R(CLUS)'
          WRITE(*,*) '(MUST MATCH VALUES USED IN PROCESSING',
     +         ' OF NJET>0 EVENTS; THESE DEFAULT TO:'
          WRITE(*,*)
     +         'ETCLUS=MAX(PTJMIN+5,1.2*PTJMIN) RCLUS=DRJMIN, ',
     +         ' ETACLMAX=ETAJMAX)'
C         READ(*,*) ETCLUS,RCLUS,ETACLMAX
C         ETCLUS = RXpar(1)
C         RCLUS  = RXpar(2)
          ETACLMAX = ETAJMAX
        ENDIF
        WRITE(*,*) ' '
        WRITE(*,*) 'JET PARAMETERS FOR MATCHING:'
        WRITE(*,*) 'ET >',ETCLUS,' ETACLUS <',ETACLMAX,' R =',RCLUS
        WRITE(*,*) 'DR(PARTON-JET) <',1.5*RCLUS
      ENDIF
C     
C     CALORIMETER ETA RANGE
C     YCMAX=ETAJMAX+DRJMIN    
      YCMAX=ETACLMAX+RCLUS      ! MLM August 24
      YCMIN=-YCMAX
      END

c-------------------------------------------------------------------
      subroutine AHspar
c     set list of parameters types and assign default values
c-------------------------------------------------------------------
      implicit none
c process code
      integer ihrd
      integer itopprc
c--event file data
      integer Nunit,NunitOut,NunitIni
      character*512 filename
c total number of input events
      common/AHio/Nunit,NunitOut,NunitIni,filename
c inputs for the matching algorithm
      integer iexc,npfst,nplst,nljets,njstart,njlast
     $     ,ickkw
      double precision etclus,rclus,etaclmax
      common/AHopts/etclus,rclus,etaclmax,iexc,npfst
     $     ,nplst,nljets,njstart,njlast,ickkw
c process and particles parameters
      double precision mc,mb,mt,mw,mz,mh
      double precision ebeam
      integer ndns,ih1,ih2       
      integer nw,nz,nh,nph
      integer ihvy,ihvy2
c pdf set type
      character pdftyp*25
c total number of partons
      integer npart
      common/AHppara/mc,mb,mt,mw,mz,mh,
     & ebeam,ih1,ih2,
     & ihrd,itopprc,
     & nw,nz,nh,nph,
     & ihvy,ihvy2,
     & npart,ndns,pdftyp
c weight information
      real *8 maxwgt,avgwgt,errwgt,totlum
      integer unwev
      common/AHwgts/maxwgt,avgwgt,errwgt,totlum,unwev
c general parameters
      integer nparam
      parameter (nparam=200)
      integer parlen,partyp
      character chpar*8,chpdes*70
      double precision parval
      common/AHpars/parval(nparam),chpar(nparam),chpdes(nparam)
     $     ,parlen(nparam),partyp(nparam)
c global event cuts
      double precision ptjmin,ptjmax,etajmax,drjmin,
     +     ptbmin,ptbmax,etabmax,drbmin,
     +     ptcmin,ptcmax,etacmax,drcmin,
     +     ptphmin,etaphmax,drphjmin,drphmin,drphlmin,
     +     ptlmin,etalmax,drlmin,metmin,mllmin,mllmax
      common/AHcuts/ptjmin,ptjmax,etajmax,drjmin,
     +     ptbmin,ptbmax,etabmax,drbmin,
     +        ptcmin,ptcmax,etacmax,drcmin,
     +        ptphmin,etaphmax,drphjmin,drphmin,drphlmin,
     +        ptlmin,etalmax,drlmin,metmin,mllmin,mllmax
c
      ih2=parval(2)
      ebeam=parval(3)
      ndns=parval(4)
      ickkw=parval(7)
      ihvy=parval(11)
      ihvy2=parval(12)
      nw=parval(13)
      nz=parval(14)
      nh=parval(15)
      nph=parval(16)
      ptjmin=parval(30)
      ptbmin=parval(31)
      ptcmin=parval(32)
      ptlmin=parval(33)
      metmin=parval(34)
      ptphmin=parval(35)
      etajmax=parval(40)
      etabmax=parval(41)
      etacmax=parval(42)
      etalmax=parval(43)
      etaphmax=parval(44)
      drjmin=parval(50)
      drbmin=parval(51)
      drcmin=parval(52)
      drlmin=parval(55)
      drphjmin=parval(56)
      drphlmin=parval(57)
      drphmin=parval(58)
      mllmin=parval(61)
      mllmax=parval(62)
      itopprc=parval(102)
c
      end

c-------------------------------------------------------------------
      subroutine pdfconvH(nin,nout,type)
c-------------------------------------------------------------------
c converts ALPHA convention for PDF namings to hvqpdf conventions
      implicit none
      integer nin,nout
      character*25 type
      character*25 pdftyp(20,2)
      data pdftyp/
c cteq sets
     $     'CTEQ4M ','CTEQ4L ','CTEQ4HJ',
     $     'CTEQ5M ','CTEQ5L ','CTEQ5HJ',
     $     'CTEQ6M ','CTEQ6L ',12*' ',
C MRST SETS
     $     'MRST99 ',
     $     'MRST01; as=0.119','MRST01; as=0.117','MRST01; as=0.121'
     $     ,'MRST01J; as=0.121','MRST02LO',14*' '/
      integer pdfmap(20,2)
      data pdfmap/
     $   81,83,88,   101,103, 104,   131,133, 12*0,
     $  111,  185,186,187,188,189,   14*0/
c
      nout=pdfmap(mod(nin ,100),1+nin /100)
      type=pdftyp(mod(nin ,100),1+nin /100)
      
      end

C-----------------------------------------------------------------------
C----Calorimeter simulation obtained from Frank Paige 23 March 1988-----
C
C          USE
C
C     CALL CALINI
C     CALL CALSIM
C
C          THEN TO FIND JETS WITH A SIMPLIFIED VERSION OF THE UA1 JET
C          ALGORITHM WITH JET RADIUS RJET AND MINIMUM SCALAR TRANSVERSE
C          ENERGY EJCUT
C            (RJET=1., EJCUT=5. FOR UA1)
C          USE
C
C     CALL GETJET(RJET,EJCUT)
C
C
C-----------------------------------------------------------------------
C 
C          ADDED BY MIKE SEYMOUR: PARTON-LEVEL CALORIMETER. ALL PARTONS
C          ARE CONSIDERED TO BE HADRONS, SO IN FACT RESEM IS IGNORED
C
C     CALL CALPAR
C
C          HARD PARTICLE CALORIMETER. ONLY USES THOSE PARTICLES WHICH
C          CAME FROM THE HARD PROCESS, AND NOT THE UNDERLYING EVENT
C
C     CALL CALHAR
C
C-----------------------------------------------------------------------
      SUBROUTINE CALINI_ALPGEN
C                
C          INITIALIZE CALORIMETER FOR CALSIM AND GETJET.  NOTE THAT
C          BECAUSE THE INITIALIZATION IS SEPARATE, CALSIM CAN BE
C          CALLED MORE THAN ONCE TO SIMULATE PILEUP OF SEVERAL EVENTS.
C
      IMPLICIT NONE
      INTEGER NCY,NCPHI,NJMAX,IPHI,IY,JETNO,NCJET
      DOUBLE PRECISION YCMIN,YCMAX,PI,ET,DELPHI,PHIX,CPHCAL,SPHCAL,DELY,
     &  YX,THX,CTHCAL,STHCAL,PCJET,ETJET
      PARAMETER (NCY=100)
      PARAMETER (NCPHI=60,PI=3.141593D0)
      COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),
     $CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN,YCMAX
      PARAMETER (NJMAX=500)
      COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET
      LOGICAL FSTCAL
      DATA FSTCAL/.TRUE./
C
C          INITIALIZE ET ARRAY.
      DO 100 IPHI=1,NCPHI
      DO 100 IY=1,NCY
100   ET(IY,IPHI)=0.
C
      IF (FSTCAL) THEN
C          CALCULATE TRIG. FUNCTIONS.
        DELPHI=2.*PI/FLOAT(NCPHI)
        DO 200 IPHI=1,NCPHI
        PHIX=DELPHI*(IPHI-.5)
        CPHCAL(IPHI)=COS(PHIX)
        SPHCAL(IPHI)=SIN(PHIX)
200     CONTINUE
        DELY=(YCMAX-YCMIN)/FLOAT(NCY)
        DO 300 IY=1,NCY
        YX=DELY*(IY-.5)+YCMIN
        THX=2.*ATAN(EXP(-YX))
        CTHCAL(IY)=COS(THX)
        STHCAL(IY)=SIN(THX)
300     CONTINUE
        FSTCAL=.FALSE.
      ENDIF
      END
C
      SUBROUTINE CALSIM_ALPGEN
C                
C          SIMPLE CALORIMETER SIMULATION.  ASSUME UNIFORM Y AND PHI
C          BINS
C...HEPEVT commonblock.
      INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP
      PARAMETER (NMXHEP=4000)
      COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),
     &JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)
      DOUBLE PRECISION PHEP,VHEP
      SAVE /HEPEVT/
      INTEGER NCY,NCPHI,NJMAX,IHEP,ID,IY,IPHI,JETNO,NCJET
      DOUBLE PRECISION YCMIN,YCMAX,PI,YIP,PSERAP,
     &  PHIIP,DELY,DELPHI,EIP,ET,STHCAL,CTHCAL,CPHCAL,SPHCAL,
     &  PCJET,ETJET
      PARAMETER (NCY=100)
      PARAMETER (NCPHI=60,PI=3.141593D0)
      COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),
     $CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN,YCMAX
      PARAMETER (NJMAX=500)
      COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET
C
C          FILL CALORIMETER
C
      DO 200 IHEP=1,NHEP
      IF (ISTHEP(IHEP).EQ.1) THEN
        YIP=PSERAP(PHEP(1,IHEP))
        IF(YIP.LT.YCMIN.OR.YIP.GT.YCMAX) GOTO 200
        ID=ABS(IDHEP(IHEP))
C---EXCLUDE TOP QUARK, LEPTONS, PROMPT PHOTONS
        IF ((ID.GE.11.AND.ID.LE.16).OR.ID.EQ.6.OR.ID.EQ.22) GOTO 200
C
        PHIIP=ATAN2(PHEP(2,IHEP),PHEP(1,IHEP))
        IF(PHIIP.LT.0.) PHIIP=PHIIP+2.*PI
        IY=INT((YIP-YCMIN)/DELY)+1
        IPHI=INT(PHIIP/DELPHI)+1
        EIP=PHEP(4,IHEP)
C            WEIGHT BY SIN(THETA)
        ET(IY,IPHI)=ET(IY,IPHI)+EIP*STHCAL(IY)
      ENDIF
  200 CONTINUE
      END
      SUBROUTINE GETJET_ALPGEN(RJET,EJCUT,ETAJCUT)
C                
C          SIMPLE JET-FINDING ALGORITHM (SIMILAR TO UA1).
C
C     FIND HIGHEST REMAINING CELL > ETSTOP AND SUM SURROUNDING
C          CELLS WITH--
C            DELTA(Y)**2+DELTA(PHI)**2<RJET**2
C            ET>ECCUT.
C          KEEP JETS WITH ET>EJCUT AND ABS(ETA)<ETAJCUT
C          THE UA1 PARAMETERS ARE RJET=1.0 AND EJCUT=5.0
C                  
      IMPLICIT NONE
      INTEGER NCY,NCPHI,NJMAX,IPHI,IY,JETNO,J,K,NCJET,NPHI1,NPHI2,NY1,
     &  NY2,IPASS,IYMX,IPHIMX,ITLIS,IPHI1,IPHIX,IY1,IYX
      DOUBLE PRECISION YCMIN,YCMAX,PI,ETJET,PCJET,RJET,DELPHI,DELY,
     &  ETMAX,ET,ETSTOP,RR,ECCUT,PX,STHCAL,CPHCAL,SPHCAL,CTHCAL,EJCUT
      PARAMETER (NCY=100)
      PARAMETER (NCPHI=60,PI=3.141593D0)
      COMMON/CALOR/DELY,DELPHI,ET(NCY,NCPHI),
     &CTHCAL(NCY),STHCAL(NCY),CPHCAL(NCPHI),SPHCAL(NCPHI),YCMIN,YCMAX
      PARAMETER (NJMAX=500)
      COMMON/GETCOM/PCJET(4,NJMAX),ETJET(NJMAX),JETNO(NCY,NCPHI),NCJET
      DOUBLE PRECISION ETAJCUT,PSERAP
C
C          PARAMETERS
      DATA ECCUT/0.1D0/
      DATA ETSTOP/1.5D0/
      DATA ITLIS/6/
C
C          INITIALIZE
C

c fix complains on uninit variables
      iymx = 0
      iphimx = 0
c
      DO 100 IPHI=1,NCPHI
      DO 100 IY=1,NCY
100   JETNO(IY,IPHI)=0
      DO 110 J=1,NJMAX
      ETJET(J)=0.
      DO 110 K=1,4
110   PCJET(K,J)=0.
      NCJET=0
      NPHI1=RJET/DELPHI
      NPHI2=2*NPHI1+1
      NY1=RJET/DELY
      NY2=2*NY1+1
      IPASS=0
C
C          FIND HIGHEST CELL REMAINING
C
1     ETMAX=0.
      DO 200 IPHI=1,NCPHI
      DO 210 IY=1,NCY
      IF(ET(IY,IPHI).LT.ETMAX) GOTO 210
      IF(JETNO(IY,IPHI).NE.0) GOTO 210
      ETMAX=ET(IY,IPHI)
      IYMX=IY
      IPHIMX=IPHI
210   CONTINUE
200   CONTINUE
      IF(ETMAX.LT.ETSTOP) RETURN
C
C          SUM CELLS
C
      IPASS=IPASS+1
      IF(IPASS.GT.NCY*NCPHI) THEN
        WRITE(ITLIS,8888) IPASS
8888    FORMAT(//' ERROR IN GETJET_ALPGEN...IPASS > ',I6)
        RETURN
      ENDIF
      NCJET=NCJET+1
      IF(NCJET.GT.NJMAX) THEN
        WRITE(ITLIS,9999) NCJET
9999    FORMAT(//' ERROR IN GETJET_ALPGEN...NCJET > ',I5)
        RETURN
      ENDIF
      DO 300 IPHI1=1,NPHI2
      IPHIX=IPHIMX-NPHI1-1+IPHI1
      IF(IPHIX.LE.0) IPHIX=IPHIX+NCPHI
      IF(IPHIX.GT.NCPHI) IPHIX=IPHIX-NCPHI
      DO 310 IY1=1,NY2
      IYX=IYMX-NY1-1+IY1
      IF(IYX.LE.0) GOTO 310
      IF(IYX.GT.NCY) GOTO 310
      IF(JETNO(IYX,IPHIX).NE.0) GOTO 310
      RR=(DELY*(IY1-NY1-1))**2+(DELPHI*(IPHI1-NPHI1-1))**2
      IF(RR.GT.RJET**2) GOTO 310
      IF(ET(IYX,IPHIX).LT.ECCUT) GOTO 310
      PX=ET(IYX,IPHIX)/STHCAL(IYX)
C          ADD CELL TO JET
      PCJET(1,NCJET)=PCJET(1,NCJET)+PX*STHCAL(IYX)*CPHCAL(IPHIX)
      PCJET(2,NCJET)=PCJET(2,NCJET)+PX*STHCAL(IYX)*SPHCAL(IPHIX)
      PCJET(3,NCJET)=PCJET(3,NCJET)+PX*CTHCAL(IYX)
      PCJET(4,NCJET)=PCJET(4,NCJET)+PX
      ETJET(NCJET)=ETJET(NCJET)+ET(IYX,IPHIX)
      JETNO(IYX,IPHIX)=NCJET
310   CONTINUE
300   CONTINUE
C
C          DISCARD JET IF ET < EJCUT.
C
      IF(ETJET(NCJET).GT.EJCUT.AND.ABS(PSERAP(PCJET(1,NCJET))).LT
     $     .ETAJCUT) GOTO 1
      ETJET(NCJET)=0.
      DO 400 K=1,4
400   PCJET(K,NCJET)=0.
      NCJET=NCJET-1
      GOTO 1
      END
C-----------------------------------------------------------------------
      SUBROUTINE CALDEL_ALPGEN(ISTLO,ISTHI,ISTOP)
C     LABEL ALL PARTICLES WITH STATUS BETWEEN ISTLO AND ISTHI (UNTIL A
C     PARTICLE WITH STATUS ISTOP IS FOUND) AS FINAL-STATE, CALL CALSIM
C     AND THEN PUT LABELS BACK TO NORMAL
C
C     THIS VERSION LEAVES OUT PARTICLES THAT POINT BACK TO MOTHERS TO BE
C     LEFT OUT OF MATCHING
C-----------------------------------------------------------------------
      IMPLICIT NONE
      INTEGER MAXNUP
      PARAMETER(MAXNUP=500)
      INTEGER IEND,INORAD
      COMMON/SHVETO/IEND,INORAD(MAXNUP)
C...HEPEVT commonblock.
      INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP
      PARAMETER (NMXHEP=4000)
      COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),
     &JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)
      DOUBLE PRECISION PHEP,VHEP
      SAVE /HEPEVT/
      INTEGER ISTOLD(NMXHEP),IHEP,IST,ISTLO,ISTHI,ISTOP,IMO
      LOGICAL FOUND
c      write(3,*) 'new event',nevhep
      FOUND=.FALSE.
      DO 10 IHEP=1,NHEP
        IST=ISTHEP(IHEP)
        ISTOLD(IHEP)=IST
        IF (IST.EQ.ISTOP) FOUND=.TRUE.
        IF (IST.GE.ISTLO.AND.IST.LE.ISTHI.AND..NOT.FOUND) THEN
C     FOUND A RADIATED PARTON, CHECK MOTHER
          IMO=IHEP
 1        IMO=JMOHEP(1,IMO)
          IF(IMO.EQ.IEND) THEN
C     PARENTHOOD OK
            IST=1
c            write(3,*) ihep,ist
            GOTO 9
          ENDIF
          IF(INORAD(IMO).EQ.1) THEN
C     PARTON COMES FROM A VETOED MOTHER
            IST=0
            GOTO 9
          ELSE
C     CHECK GRANDMOTHER
            GOTO 1
          ENDIF
        ELSE
          IST=0
        ENDIF
 9      ISTHEP(IHEP)=IST
 10   CONTINUE

C     PRINT PARTICLE STATUS FOR THE CALORIMETER SIMULATION.
C     (UNCOMMENT TO MAKE IT WORK)
C     MUST BE LINKED WITH alpg_debug.F IN AlpgenInterface
C      CALL DBCAL

      CALL CALSIM_ALPGEN
      DO 20 IHEP=1,NHEP
        ISTHEP(IHEP)=ISTOLD(IHEP)
 20   CONTINUE
      END
C-----------------------------------------------------------------------
      SUBROUTINE CALDEL_ALPGEN_HVQ(ISTLO,ISTHI,ISTOP)
C     LABEL ALL PARTICLES WITH STATUS BETWEEN ISTLO AND ISTHI (UNTIL A
C     PARTICLE WITH STATUS ISTOP IS FOUND) AS FINAL-STATE, CALL CALSIM
C     AND THEN PUT LABELS BACK TO NORMAL
C
C     THIS VERSION KEEPS ONLY ALL IST=1 PARTICLES REJECTED BY CALDEL AS
C     DAUGHTERS OF VETOED HEAVY-QUARK MOTHERS: JETS COMPLEMENTARY TO
C     THOSE RECONSTRUCTED BY CALDEL
C-----------------------------------------------------------------------
      IMPLICIT NONE
      INTEGER MAXNUP
      PARAMETER(MAXNUP=500)
      INTEGER IEND,INORAD
      COMMON/SHVETO/IEND,INORAD(MAXNUP)
C...HEPEVT commonblock.
      INTEGER NMXHEP,NEVHEP,NHEP,ISTHEP,IDHEP,JMOHEP,JDAHEP
      PARAMETER (NMXHEP=4000)
      COMMON/HEPEVT/NEVHEP,NHEP,ISTHEP(NMXHEP),IDHEP(NMXHEP),
     &JMOHEP(2,NMXHEP),JDAHEP(2,NMXHEP),PHEP(5,NMXHEP),VHEP(4,NMXHEP)
      DOUBLE PRECISION PHEP,VHEP
      SAVE /HEPEVT/
      INTEGER ISTOLD(NMXHEP),IHEP,IST,ISTLO,ISTHI,ISTOP,IMO
      INTEGER IDMOTH,IDDAUG
      LOGICAL FOUND
      FOUND=.FALSE.
C TAG W-B FROM TOP DECAYS
      DO IHEP=1,NHEP
        IMO=JMOHEP(1,IHEP)
        IDMOTH=ABS(IDHEP(IMO))
        IDDAUG=ABS(IDHEP(IHEP))
        IF(IDMOTH.EQ.6.AND.(IDDAUG.EQ.5.OR.IDDAUG.EQ.24)) INORAD(IHEP)=2
      ENDDO
C
      DO 10 IHEP=1,NHEP
        IST=ISTHEP(IHEP)
        ISTOLD(IHEP)=IST
        IF (IST.EQ.ISTOP) FOUND=.TRUE.
        IF (IST.GE.ISTLO.AND.IST.LE.ISTHI.AND..NOT.FOUND) THEN
C     FOUND A RADIATED PARTON, CHECK MOTHER
          IMO=IHEP
 1        IMO=JMOHEP(1,IMO)
          IF(IMO.EQ.IEND) THEN
C     PARENTHOOD OK, VETO
            IST=0
            GOTO 9
          ENDIF
          IF(INORAD(IMO).EQ.1) THEN
            IDMOTH=ABS(IDHEP(IMO))
            IDDAUG=ABS(IDHEP(IHEP))
C     VERIFY IT'S A HEAVY QUARK -- LEAVE OUT GAUGE BOSON DECAYS
            IF(IDMOTH.GE.4.AND.IDMOTH.LE.6) THEN
C     PARTON COMES FROM A VETOED MOTHER, KEEP UNLESS IT IS THE EVOLVED
C     MOTHER
              IF(IDMOTH.NE.IDDAUG) THEN
                IST=1
                GOTO 9
              ELSE
                IST=0
              ENDIF
            ELSE
C     NOT A HEAVY QUARK MOTHER, LEAVE OUT OF JET RECONSUTRCTION
              IST=0
            ENDIF
          ELSEIF(INORAD(IMO).EQ.2) THEN
C     IT'S A TOP DECAY PRODUCT
            IST=0
          ELSE
C     GO CHECK GRANDMOTHER
            GOTO 1
          ENDIF
        ELSE
          IST=0
        ENDIF
 9      ISTHEP(IHEP)=IST
 10   CONTINUE
      CALL CALSIM_ALPGEN
      DO 20 IHEP=1,NHEP
        ISTHEP(IHEP)=ISTOLD(IHEP)
 20   CONTINUE
      END
c$$$C-----------------------------------------------------------------------
c$$$      FUNCTION PSERAP(P)
c$$$C     PSEUDO-RAPIDITY (-LOG TAN THETA/2)
c$$$C-----------------------------------------------------------------------
c$$$      DOUBLE PRECISION PSERAP,P(3),PT,PL,TINY,THETA
c$$$      PARAMETER (TINY=1D-3)
c$$$      PT=SQRT(P(1)**2+P(2)**2)+TINY
c$$$      PL=P(3)
c$$$      THETA=ATAN2(PT,PL)
c$$$      PSERAP=-LOG(TAN(0.5*THETA))
c$$$      END
c$$$C-----------------------------------------------------------------------
c$$$C-----------------------------------------------------------------------
c$$$      SUBROUTINE ALPSOR(A,N,K,IOPT)
c$$$C-----------------------------------------------------------------------
c$$$C     Sort A(N) into ascending order
c$$$C     IOPT = 1 : return sorted A and index array K
c$$$C     IOPT = 2 : return index array K only
c$$$C-----------------------------------------------------------------------
c$$$      DOUBLE PRECISION A(N),B(5000)
c$$$      INTEGER N,I,J,IOPT,K(N),IL(5000),IR(5000)
c$$$      IF (N.GT.5000) then
c$$$        write(*,*) 'Too many entries to sort in alpsrt, stop'
c$$$        stop
c$$$      endif
c$$$      if(n.le.0) return
c$$$      IL(1)=0
c$$$      IR(1)=0
c$$$      DO 10 I=2,N
c$$$      IL(I)=0
c$$$      IR(I)=0
c$$$      J=1
c$$$   2  IF(A(I).GT.A(J)) GOTO 5
c$$$   3  IF(IL(J).EQ.0) GOTO 4
c$$$      J=IL(J)
c$$$      GOTO 2
c$$$   4  IR(I)=-J
c$$$      IL(J)=I
c$$$      GOTO 10
c$$$   5  IF(IR(J).LE.0) GOTO 6
c$$$      J=IR(J)
c$$$      GOTO 2
c$$$   6  IR(I)=IR(J)
c$$$      IR(J)=I
c$$$  10  CONTINUE
c$$$      I=1
c$$$      J=1
c$$$      GOTO 8
c$$$  20  J=IL(J)
c$$$   8  IF(IL(J).GT.0) GOTO 20
c$$$   9  K(I)=J
c$$$      B(I)=A(J)
c$$$      I=I+1
c$$$
c$$$C Compatibility with gfortran (CMSSW 3_X)
c$$$C      IF(IR(J)) 12,30,13
c$$$C  13  J=IR(J)
c$$$C      GOTO 8
c$$$C  12  J=-IR(J)
c$$$C      GOTO 9
c$$$C  30  IF(IOPT.EQ.2) RETURN
c$$$
c$$$      IF (IR(J).GT.0) THEN
c$$$         J=IR(J)
c$$$         GOTO 8
c$$$      ELSEIF (IR(J).LT.0) then
c$$$         J=-IR(J)
c$$$         GOTO 9
c$$$      ENDIF
c$$$      IF (IOPT.EQ.2) RETURN 
c$$$      
c$$$      DO 31 I=1,N
c$$$  31  A(I)=B(I)
c$$$ 999  END

C-----------------------------------------------------------------------
      subroutine getunit(n)
      implicit none
      integer n,i
      logical yes
      WRITE(*,*)'CALLED GETUNIT'
      do i=10,100
        inquire(unit=i,opened=yes)
        if(.not.yes) goto 10
      enddo
      write(*,*) 'no free units to write to available, stop'
      stop
 10   n=i
      end