Back to home page

Project CMSSW displayed by LXR

 
 

    


File indexing completed on 2024-04-06 12:03:36

0001 #Default Pythia Paramters for Hydjet & Pyquen
0002 
0003 import FWCore.ParameterSet.Config as cms
0004 
0005 from Configuration.Generator.PythiaUESettings_cfi import *
0006 
0007 collisionParameters4TeV = cms.PSet(aBeamTarget = cms.double(208.0), ## beam/target atomic number
0008                                comEnergy = cms.double(4000.0)
0009                                )
0010 
0011 collisionParameters2760GeV = cms.PSet(aBeamTarget = cms.double(208.0), ## beam/target atomic number
0012                                    comEnergy = cms.double(2760.0)
0013                                    )
0014 
0015 collisionParameters5020GeV = cms.PSet(aBeamTarget = cms.double(208.0), ## beam/target atomic number
0016                                    comEnergy = cms.double(5020.0)
0017                                    )
0018 
0019 collisionParameters5362GeV = cms.PSet(aBeamTarget = cms.double(208.0), ## beam/target atomic number
0020                                    comEnergy = cms.double(5362.0)
0021                                    )
0022 
0023 qgpParameters = cms.PSet(qgpInitialTemperature = cms.double(1.1), ## initial temperature of QGP; allowed range [0.2,2.0]GeV;
0024                          qgpProperTimeFormation = cms.double(0.1), ## proper time of QGP formation; allowed range [0.01,10.0]fm/c;
0025                          hadronFreezoutTemperature = cms.double(0.125),
0026                          doRadiativeEnLoss = cms.bool(True), ## if true, perform partonic radiative en loss
0027                          doCollisionalEnLoss = cms.bool(True),
0028                          qgpNumQuarkFlavor = cms.int32(0),  ## number of active quark flavors in qgp; allowed values: 0,1,2,3
0029                          )
0030 
0031 qgpParameters2023 = cms.PSet(qgpInitialTemperature = cms.double(1.0), ## initial temperature of QGP; allowed range [0.2,2.0]GeV;
0032                              qgpProperTimeFormation = cms.double(0.1), ## proper time of QGP formation; allowed range [0.01,10.0]fm/c;
0033                              hadronFreezoutTemperature = cms.double(0.125),
0034                              doRadiativeEnLoss = cms.bool(True), ## if true, perform partonic radiative en loss
0035                              doCollisionalEnLoss = cms.bool(True),
0036                              qgpNumQuarkFlavor = cms.int32(0),  ## number of active quark flavors in qgp; allowed values: 0,1,2,3
0037                          )
0038 
0039 pyquenParameters  = cms.PSet(doIsospin = cms.bool(True),
0040                              angularSpectrumSelector = cms.int32(0), ## angular emitted gluon spectrum
0041                              embeddingMode = cms.int32(0),
0042                              )
0043 
0044 hydjetParameters = cms.PSet(sigmaInelNN = cms.double(70),
0045                             shadowingSwitch = cms.int32(1),
0046                             nMultiplicity = cms.int32(25000),
0047                             fracSoftMultiplicity = cms.double(1.),
0048                             maxLongitudinalRapidity = cms.double(4.5),
0049                             maxTransverseRapidity = cms.double(1.25),
0050                             rotateEventPlane = cms.bool(True),
0051                             allowEmptyEvents = cms.bool(False),
0052                             angularSpectrumSelector = cms.int32(1), ## angular emitted gluon spectrum
0053                             embeddingMode = cms.int32(0)
0054                             )
0055 
0056 hydjetParameters2023 = cms.PSet(sigmaInelNN = cms.double(70),
0057                                 shadowingSwitch = cms.int32(1),
0058                                 nMultiplicity = cms.int32(9000),
0059                                 fracSoftMultiplicity = cms.double(1.),
0060                                 maxLongitudinalRapidity = cms.double(2.3),
0061                                 maxTransverseRapidity = cms.double(1.15),
0062                                 rotateEventPlane = cms.bool(True),
0063                                 allowEmptyEvents = cms.bool(False),
0064                                 angularSpectrumSelector = cms.int32(0), ## angular emitted gluon spectrum
0065                                 embeddingMode = cms.int32(0)
0066                             )
0067 
0068 pyquenPythiaDefaultBlock = cms.PSet(
0069     pythiaUESettingsBlock,
0070     hydjetPythiaDefault = cms.vstring('MSEL=0   ! user processes',
0071                                       'CKIN(3)=10.',# ! ptMin
0072                                       'MSTP(81)=1'
0073                                       ),
0074     ppDefault = cms.vstring('MSEL=1   ! QCD hight pT processes (only jets)',
0075                             'CKIN(3)=10.',# ! ptMin
0076                             'MSTP(81)=1'
0077                             ),
0078     pythiaHirootDefault = cms.vstring('MSEL=0', # ! Only user defined processes,
0079                                 'MSTU(21)=1', # ! to avoid stopping run',
0080                                 'PARU(14)=1.', # ! tolerance parameter to adjust fragmentation',
0081                                 'MSTP(81)=0', # ! pp multiple scattering off',
0082                                 'PMAS(5,1)=4.8', # ! b quark mass',
0083                                 'PMAS(6,1)=175.0', # ! t quark mass'
0084                                 'CKIN(3)=7.',# ! ptMin
0085                                 'MSTJ(22)=2',
0086                                 'PARJ(71)=10.', # Decays only if life time < 10mm
0087                                 'PARP(67)=1.',
0088                                 'PARP(82)=1.9',
0089                                 'PARP(85)=0.33',
0090                                 'PARP(86)=0.66',
0091                                 'PARP(89)=1000.',
0092                                 'PARP(91)=1.0',
0093                                 'MSTJ(11)=3',
0094                                 'MSTJ(22)=2'
0095                                 ),
0096     ppJets = cms.vstring('MSEL=1   ! QCD hight pT processes'),
0097     customProcesses = cms.vstring('MSEL=0   ! User processes'),
0098     pythiaJets = cms.vstring('MSUB(11)=1', # q+q->q+q
0099                              'MSUB(12)=1', # q+qbar->q+qbar
0100                              'MSUB(13)=1', # q+qbar->g+g
0101                              'MSUB(28)=1', # q+g->q+g
0102                              'MSUB(53)=1', # g+g->q+qbar
0103                              'MSUB(68)=1' # g+g->g+g
0104                              ),
0105     pythiaPromptPhotons = cms.vstring('MSUB(14)=1', # q+qbar->g+gamma
0106                                       'MSUB(18)=1', # q+qbar->gamma+gamma
0107                                       'MSUB(29)=1', # q+g->q+gamma
0108                                       'MSUB(114)=1', # g+g->gamma+gamma
0109                                       'MSUB(115)=1' # g+g->g+gamma
0110                                       ),
0111 
0112     pythiaWeakBosons = cms.vstring('MSUB(1)=1',
0113                                    'MSUB(2)=1'),
0114 
0115     pythiaZjets = cms.vstring('MSUB(15)=1',
0116                               'MSUB(30)=1'),
0117 
0118     pythiaCharmoniumNRQCD = cms.vstring('MSUB(421) = 1',
0119                                         'MSUB(422) = 1',
0120                                         'MSUB(423) = 1',
0121                                         'MSUB(424) = 1',
0122                                         'MSUB(425) = 1',
0123                                         'MSUB(426) = 1',
0124                                         'MSUB(427) = 1',
0125                                         'MSUB(428) = 1',
0126                                         'MSUB(429) = 1',
0127                                         'MSUB(430) = 1',
0128                                         'MSUB(431) = 1',
0129                                         'MSUB(432) = 1',
0130                                         'MSUB(433) = 1',
0131                                         'MSUB(434) = 1',
0132                                         'MSUB(435) = 1',
0133                                         'MSUB(436) = 1',
0134                                         'MSUB(437) = 1',
0135                                         'MSUB(438) = 1',
0136                                         'MSUB(439) = 1'
0137                                         ),
0138 
0139     pythiaBottomoniumNRQCD = cms.vstring('MSUB(461) = 1',
0140                                          'MSUB(462) = 1',
0141                                          'MSUB(463) = 1',
0142                                          'MSUB(464) = 1',
0143                                          'MSUB(465) = 1',
0144                                          'MSUB(466) = 1',
0145                                          'MSUB(467) = 1',
0146                                          'MSUB(468) = 1',
0147                                          'MSUB(469) = 1',
0148                                          'MSUB(470) = 1',
0149                                          'MSUB(471) = 1',
0150                                          'MSUB(472) = 1',
0151                                          'MSUB(473) = 1',
0152                                          'MSUB(474) = 1',
0153                                          'MSUB(475) = 1',
0154                                          'MSUB(476) = 1',
0155                                          'MSUB(477) = 1',
0156                                          'MSUB(478) = 1',
0157                                          'MSUB(479) = 1',
0158                                          ),
0159 
0160     pythiaQuarkoniaSettings = cms.vstring('PARP(141)=1.16',   # Matrix Elements
0161                                           'PARP(142)=0.0119',
0162                                           'PARP(143)=0.01',
0163                                           'PARP(144)=0.01',
0164                                           'PARP(145)=0.05',
0165                                           'PARP(146)=9.28',
0166                                           'PARP(147)=0.15',
0167                                           'PARP(148)=0.02',
0168                                           'PARP(149)=0.02',
0169                                           'PARP(150)=0.085',
0170                                           # Meson spin
0171                                           'PARJ(13)=0.60',
0172                                           'PARJ(14)=0.162',
0173                                           'PARJ(15)=0.018',
0174                                           'PARJ(16)=0.054',
0175                                           # Polarization
0176                                           'MSTP(145)=0',
0177                                           'MSTP(146)=0',
0178                                           'MSTP(147)=0',
0179                                           'MSTP(148)=1',
0180                                           'MSTP(149)=1',
0181                                           # Chi_c branching ratios
0182                                           'BRAT(861)=0.202',
0183                                           'BRAT(862)=0.798',
0184                                           'BRAT(1501)=0.013',
0185                                           'BRAT(1502)=0.987',
0186                                           'BRAT(1555)=0.356',
0187                                           'BRAT(1556)=0.644'
0188                                           ),
0189 
0190     pythiaZtoMuons = cms.vstring("MDME(174,1)=0",          # !Z decay into d dbar,
0191                                  "MDME(175,1)=0",          # !Z decay into u ubar,
0192                                  "MDME(176,1)=0",          # !Z decay into s sbar,
0193                                  "MDME(177,1)=0",          # !Z decay into c cbar,
0194                                  "MDME(178,1)=0",          # !Z decay into b bbar,
0195                                  "MDME(179,1)=0",          # !Z decay into t tbar,
0196                                  "MDME(182,1)=0",          # !Z decay into e- e+,
0197                                  "MDME(183,1)=0",          # !Z decay into nu_e nu_ebar,
0198                                  "MDME(184,1)=1",          # !Z decay into mu- mu+,
0199                                  "MDME(185,1)=0",          # !Z decay into nu_mu nu_mubar,
0200                                  "MDME(186,1)=0",          # !Z decay into tau- tau+,
0201                                  "MDME(187,1)=0"           # !Z decay into nu_tau nu_taubar
0202                                  ),
0203 
0204 
0205     pythiaZtoElectrons = cms.vstring("MDME(174,1)=0",          # !Z decay into d dbar,
0206                                      "MDME(175,1)=0",          # !Z decay into u ubar,
0207                                      "MDME(176,1)=0",          # !Z decay into s sbar,
0208                                      "MDME(177,1)=0",          # !Z decay into c cbar,
0209                                      "MDME(178,1)=0",          # !Z decay into b bbar,
0210                                      "MDME(179,1)=0",          # !Z decay into t tbar,
0211                                      "MDME(182,1)=1",          # !Z decay into e- e+,
0212                                      "MDME(183,1)=0",          # !Z decay into nu_e nu_ebar,
0213                                      "MDME(184,1)=0",          # !Z decay into mu- mu+,
0214                                      "MDME(185,1)=0",          # !Z decay into nu_mu nu_mubar,
0215                                      "MDME(186,1)=0",          # !Z decay into tau- tau+,
0216                                      "MDME(187,1)=0"           # !Z decay into nu_tau nu_taubar
0217                                      ),
0218 
0219     pythiaZtoMuonsAndElectrons = cms.vstring("MDME(174,1)=0",          # !Z decay into d dbar,
0220                                              "MDME(175,1)=0",          # !Z decay into u ubar,
0221                                              "MDME(176,1)=0",          # !Z decay into s sbar,
0222                                              "MDME(177,1)=0",          # !Z decay into c cbar,
0223                                              "MDME(178,1)=0",          # !Z decay into b bbar,
0224                                              "MDME(179,1)=0",          # !Z decay into t tbar,
0225                                              "MDME(182,1)=1",          # !Z decay into e- e+,
0226                                              "MDME(183,1)=0",          # !Z decay into nu_e nu_ebar,
0227                                              "MDME(184,1)=1",          # !Z decay into mu- mu+,
0228                                              "MDME(185,1)=0",          # !Z decay into nu_mu nu_mubar,
0229                                              "MDME(186,1)=0",          # !Z decay into tau- tau+,
0230                                              "MDME(187,1)=0"           # !Z decay into nu_tau nu_taubar
0231                                              ),
0232 
0233     pythiaUpsilonToMuons = cms.vstring('BRAT(1034) = 0 ',  # switch off',
0234                                        'BRAT(1035) = 1 ',  # switch on',
0235                                        'BRAT(1036) = 0 ',  # switch off',
0236                                        'BRAT(1037) = 0 ',  # switch off',
0237                                        'BRAT(1038) = 0 ',  # switch off',
0238                                        'BRAT(1039) = 0 ',  # switch off',
0239                                        'BRAT(1040) = 0 ',  # switch off',
0240                                        'BRAT(1041) = 0 ',  # switch off',
0241                                        'BRAT(1042) = 0 ',  # switch off',
0242                                        'MDME(1034,1) = 0 ',  # switch off',
0243                                        'MDME(1035,1) = 1 ',  # switch on',
0244                                        'MDME(1036,1) = 0 ',  # switch off',
0245                                        'MDME(1037,1) = 0 ',  # switch off',
0246                                        'MDME(1038,1) = 0 ',  # switch off',
0247                                        'MDME(1039,1) = 0 ',  # switch off',
0248                                        'MDME(1040,1) = 0 ',  # switch off',
0249                                        'MDME(1041,1) = 0 ',  # switch off',
0250                                        'MDME(1042,1) = 0 ',  # switch off'
0251                                        ),
0252 
0253    pythiaJpsiToMuons = cms.vstring('BRAT(858) = 0 ',  # switch off',
0254                                    'BRAT(859) = 1 ',  # switch on',
0255                                    'BRAT(860) = 0 ',  # switch off',
0256                                    'MDME(858,1) = 0 ',  # switch off',
0257                                    'MDME(859,1) = 1 ',  # switch on',
0258                                    'MDME(860,1) = 0 ',  # switch off'
0259                                    ),
0260 
0261     pythiaMuonCandidates = cms.vstring(
0262     'CKIN(3)=20',
0263     'MSTJ(22)=2',
0264     'PARJ(71)=40.'
0265     ),
0266     myParameters = cms.vstring('MDCY(310,1)=0')
0267 
0268 )