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File indexing completed on 2021-02-14 12:52:39

0001 import FWCore.ParameterSet.Config as cms
0002 
0003 from Configuration.Generator.PythiaUESettings_cfi import *
0004 generator = cms.EDFilter("Pythia6GeneratorFilter",
0005     pythiaPylistVerbosity = cms.untracked.int32(0),
0006     filterEfficiency = cms.untracked.double(0.0154),
0007     pythiaHepMCVerbosity = cms.untracked.bool(False),
0008     crossSection = cms.untracked.double(354400000.0),
0009     comEnergy = cms.double(10000.0),
0010     maxEventsToPrint = cms.untracked.int32(0),
0011     PythiaParameters = cms.PSet(
0012         pythiaUESettingsBlock,
0013         processParameters = cms.vstring(
0014         'MSEL=61          ! Quarkonia',
0015         'CKIN(3)=0.       ! Min pthard',
0016         'CKIN(4)=20.      ! Max pthard',
0017         'MDME(858,1) = 0  ! 0.060200    e-    e+',
0018         'MDME(859,1) = 1  ! 0.060100    mu-  mu+',
0019         'MDME(860,1) = 0  ! 0.879700    rndmflav        rndmflavbar',
0020         'MSTP(142)=2      ! turns on the PYEVWT Pt re-weighting routine',
0021         'PARJ(13)=0.750   ! probability that a c or b meson has S=1',
0022         'PARJ(14)=0.162   ! probability that a meson with S=0 is produced with L=1, J=1',
0023         'PARJ(15)=0.018   ! probability that a meson with S=1 is produced with L=1, J=0',
0024         'PARJ(16)=0.054   ! probability that a meson with S=1 is produced with L=1, J=1',
0025         'MSTP(145)=0      ! choice of polarization',
0026         'MSTP(146)=0      ! choice of polarization frame ONLY when mstp(145)=1',
0027         'MSTP(147)=0      ! particular helicity or density matrix component when mstp(145)=1',
0028         'MSTP(148)=1      ! possibility to allow for final-state shower evolution, extreme case !',
0029         'MSTP(149)=1      ! if mstp(148)=1, it determines the kinematics of the QQ~3S1(8)->QQ~3S1(8)+g branching',
0030         'PARP(141)=1.16   ! New values for COM matrix elements',
0031         'PARP(142)=0.0119 ! New values for COM matrix elements',
0032         'PARP(143)=0.01   ! New values for COM matrix elements',
0033         'PARP(144)=0.01   ! New values for COM matrix elements',
0034         'PARP(145)=0.05   ! New values for COM matrix elements',
0035         'PARP(146)=9.28   ! New values for COM matrix elements',
0036         'PARP(147)=0.15   ! New values for COM matrix elements',
0037         'PARP(148)=0.02   ! New values for COM matrix elements',
0038         'PARP(149)=0.02   ! New values for COM matrix elements',
0039         'PARP(150)=0.085  ! New values for COM matrix elements',
0040         'BRAT(859)=1.000  ! J/psi->mu+mu-',
0041         'BRAT(861)=0.000  ! chi_2c->J/psi gamma',
0042         'BRAT(862)=0.798  ! chi_2c->rndmflav rndmflavbar',
0043         'BRAT(1501)=0.000 ! chi_0c->J/psi gamma',
0044         'BRAT(1502)=0.987 ! chi_0c->rndmflav rndmflavbar',
0045         'BRAT(1555)=0.000 ! chi_1c->J/psi gamma',
0046         'BRAT(1556)=0.644 ! chi_1c->rndmflav rndmflavbar',
0047         'BRAT(1569)=0.186600 ! psi(2S) -> rndmflav rndmflavbar',
0048         'BRAT(1570)=0.000 ! psi(2S) ->J/psi pi+ pi-',
0049         'BRAT(1571)=0.000 ! psi(2S) ->J/psi pi0 pi0',
0050         'BRAT(1572)=0.000 ! psi(2S) ->J/psi eta',
0051         'BRAT(1573)=0.000 ! psi(2S) ->J/psi pi0'
0052         ),
0053         # This is a vector of ParameterSet names to be read, in this order
0054         parameterSets = cms.vstring('pythiaUESettings', 
0055             'processParameters', 
0056             'CSAParameters'),
0057         CSAParameters = cms.vstring('CSAMODE = 6     ! cross-section reweighted quarkonia')
0058     )
0059 )
0060 
0061 oniafilter = cms.EDFilter("PythiaFilter",
0062     Status = cms.untracked.int32(2),
0063     MaxEta = cms.untracked.double(1000.0),
0064     MinEta = cms.untracked.double(-1000.0),
0065     MinPt = cms.untracked.double(0.0),
0066     ParticleID = cms.untracked.int32(443)
0067 )
0068 
0069 mumugenfilter = cms.EDFilter("MCParticlePairFilter",
0070     Status = cms.untracked.vint32(1, 1),
0071     MinPt = cms.untracked.vdouble(2.5, 2.5),
0072     MaxEta = cms.untracked.vdouble(2.5, 2.5),
0073     MinEta = cms.untracked.vdouble(-2.5, -2.5),
0074     ParticleCharge = cms.untracked.int32(-1),
0075     ParticleID1 = cms.untracked.vint32(13),
0076     ParticleID2 = cms.untracked.vint32(13)
0077 )
0078 
0079 ProductionFilterSequence = cms.Sequence(generator*oniafilter*mumugenfilter)