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

0001 import FWCore.ParameterSet.Config as cms
0002 
0003 pythiaUESettingsBlock = cms.PSet(
0004         pythiaUESettings = cms.vstring(
0005                 'MSTU(21)=1 ! Check on possible errors during program execution', 
0006                 'MSTJ(22)=2 ! Decay those unstable particles', 
0007                 'PARJ(71)=10 . ! for which ctau 10 mm', 
0008                 'MSTP(33)=0 ! no K factors in hard cross sections', 
0009                 'MSTP(2)=1 ! which order running alphaS', 
0010                 'MSTP(51)=10042 ! structure function chosen (external PDF CTEQ6L1)', 
0011                 'MSTP(52)=2 ! work with LHAPDF', 
0012                 'PARP(82)=1.921 ! pt cutoff for multiparton interactions', 
0013                 'PARP(89)=1800. ! sqrts for which PARP82 is set', 
0014                 'PARP(90)=0.227 ! Multiple interactions: rescaling power', 
0015                 'MSTP(95)=6 ! CR (color reconnection parameters)', 
0016                 'PARP(77)=1.016 ! CR', 
0017                 'PARP(78)=0.538 ! CR', 
0018                 'PARP(80)=0.1 ! Prob. colored parton from BBR', 
0019                 'PARP(83)=0.356 ! Multiple interactions: matter distribution parameter', 
0020                 'PARP(84)=0.651 ! Multiple interactions: matter distribution parameter', 
0021                 'PARP(62)=1.025 ! ISR cutoff', 
0022                 'MSTP(91)=1 ! Gaussian primordial kT', 
0023                 'PARP(93)=10.0 ! primordial kT-max', 
0024                 'MSTP(81)=21 ! multiple parton interactions 1 is Pythia default', 
0025                 'MSTP(82)=4 ! Defines the multi-parton model',
0026                 #Z2star lep
0027                 'PARJ(1) = 0.08 ! HAD diquark suppression',
0028                 'PARJ(2) = 0.21 ! HAD strangeness suppression',
0029                 'PARJ(3) = 0.94 ! HAD strange diquark suppression',
0030                 'PARJ(4) = 0.04 ! HAD vectior diquark suppression',
0031                 'PARJ(11) = 0.35 ! HAD P(vector meson), u and d only',
0032                 'PARJ(12) = 0.35 ! HAD P(vector meson) contains ',
0033                 'PARJ(13) = 0.54 ! HAD P(vector meson), heavy quarks',
0034                 'PARJ(21) = 0.34 ! HAD fragmentation pt',
0035                 'PARJ(25) = 0.63 ! HAD eta0 suppression',
0036                 'PARJ(26) = 0.12 ! HAD eta0 suppression'
0037          ) 
0038 )