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hydjetDefaultParameters_cff.py
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1 #Default Pythia Paramters for Hydjet & Pyquen
2 
3 import FWCore.ParameterSet.Config as cms
4 
5 from Configuration.Generator.PythiaUESettings_cfi import *
6 
7 collisionParameters4TeV = cms.PSet(aBeamTarget = cms.double(208.0), ## beam/target atomic number
8  comEnergy = cms.double(4000.0)
9  )
10 
11 collisionParameters2760GeV = cms.PSet(aBeamTarget = cms.double(208.0), ## beam/target atomic number
12  comEnergy = cms.double(2760.0)
13  )
14 
15 collisionParameters5020GeV = cms.PSet(aBeamTarget = cms.double(208.0), ## beam/target atomic number
16  comEnergy = cms.double(5020.0)
17  )
18 
19 qgpParameters = cms.PSet(qgpInitialTemperature = cms.double(1.1), ## initial temperature of QGP; allowed range [0.2,2.0]GeV;
20  qgpProperTimeFormation = cms.double(0.1), ## proper time of QGP formation; allowed range [0.01,10.0]fm/c;
21  hadronFreezoutTemperature = cms.double(0.125),
22  doRadiativeEnLoss = cms.bool(True), ## if true, perform partonic radiative en loss
23  doCollisionalEnLoss = cms.bool(True),
24  qgpNumQuarkFlavor = cms.int32(0), ## number of active quark flavors in qgp; allowed values: 0,1,2,3
25  numQuarkFlavor = cms.int32(0) ## to be removed
26  )
27 
28 hydjetParameters = cms.PSet(sigmaInelNN = cms.double(70),
29  shadowingSwitch = cms.int32(1),
30  nMultiplicity = cms.int32(25000),
31  fracSoftMultiplicity = cms.double(1.),
32  maxLongitudinalRapidity = cms.double(4.5),
33  maxTransverseRapidity = cms.double(1.25),
34  rotateEventPlane = cms.bool(True),
35  allowEmptyEvents = cms.bool(False),
36  angularSpectrumSelector = cms.int32(1), ## angular emitted gluon spectrum :
37  embeddingMode = cms.bool(False)
38  )
39 
40 pyquenPythiaDefaultBlock = cms.PSet(
41  pythiaUESettingsBlock,
42  hydjetPythiaDefault = cms.vstring('MSEL=0 ! user processes',
43  'CKIN(3)=10.',# ! ptMin
44  'MSTP(81)=1'
45  ),
46  ppDefault = cms.vstring('MSEL=1 ! QCD hight pT processes (only jets)',
47  'CKIN(3)=10.',# ! ptMin
48  'MSTP(81)=1'
49  ),
50  pythiaHirootDefault = cms.vstring('MSEL=0', # ! Only user defined processes,
51  'MSTU(21)=1', # ! to avoid stopping run',
52  'PARU(14)=1.', # ! tolerance parameter to adjust fragmentation',
53  'MSTP(81)=0', # ! pp multiple scattering off',
54  'PMAS(5,1)=4.8', # ! b quark mass',
55  'PMAS(6,1)=175.0', # ! t quark mass'
56  'CKIN(3)=7.',# ! ptMin
57  'MSTJ(22)=2',
58  'PARJ(71)=10.', # Decays only if life time < 10mm
59  'PARP(67)=1.',
60  'PARP(82)=1.9',
61  'PARP(85)=0.33',
62  'PARP(86)=0.66',
63  'PARP(89)=1000.',
64  'PARP(91)=1.0',
65  'MSTJ(11)=3',
66  'MSTJ(22)=2'
67  ),
68  ppJets = cms.vstring('MSEL=1 ! QCD hight pT processes'),
69  customProcesses = cms.vstring('MSEL=0 ! User processes'),
70  pythiaJets = cms.vstring('MSUB(11)=1', # q+q->q+q
71  'MSUB(12)=1', # q+qbar->q+qbar
72  'MSUB(13)=1', # q+qbar->g+g
73  'MSUB(28)=1', # q+g->q+g
74  'MSUB(53)=1', # g+g->q+qbar
75  'MSUB(68)=1' # g+g->g+g
76  ),
77  pythiaPromptPhotons = cms.vstring('MSUB(14)=1', # q+qbar->g+gamma
78  'MSUB(18)=1', # q+qbar->gamma+gamma
79  'MSUB(29)=1', # q+g->q+gamma
80  'MSUB(114)=1', # g+g->gamma+gamma
81  'MSUB(115)=1' # g+g->g+gamma
82  ),
83 
84  pythiaWeakBosons = cms.vstring('MSUB(1)=1',
85  'MSUB(2)=1'),
86 
87  pythiaZjets = cms.vstring('MSUB(15)=1',
88  'MSUB(30)=1'),
89 
90  pythiaCharmoniumNRQCD = cms.vstring('MSUB(421) = 1',
91  'MSUB(422) = 1',
92  'MSUB(423) = 1',
93  'MSUB(424) = 1',
94  'MSUB(425) = 1',
95  'MSUB(426) = 1',
96  'MSUB(427) = 1',
97  'MSUB(428) = 1',
98  'MSUB(429) = 1',
99  'MSUB(430) = 1',
100  'MSUB(431) = 1',
101  'MSUB(432) = 1',
102  'MSUB(433) = 1',
103  'MSUB(434) = 1',
104  'MSUB(435) = 1',
105  'MSUB(436) = 1',
106  'MSUB(437) = 1',
107  'MSUB(438) = 1',
108  'MSUB(439) = 1'
109  ),
110 
111  pythiaBottomoniumNRQCD = cms.vstring('MSUB(461) = 1',
112  'MSUB(462) = 1',
113  'MSUB(463) = 1',
114  'MSUB(464) = 1',
115  'MSUB(465) = 1',
116  'MSUB(466) = 1',
117  'MSUB(467) = 1',
118  'MSUB(468) = 1',
119  'MSUB(469) = 1',
120  'MSUB(470) = 1',
121  'MSUB(471) = 1',
122  'MSUB(472) = 1',
123  'MSUB(473) = 1',
124  'MSUB(474) = 1',
125  'MSUB(475) = 1',
126  'MSUB(476) = 1',
127  'MSUB(477) = 1',
128  'MSUB(478) = 1',
129  'MSUB(479) = 1',
130  ),
131 
132  pythiaQuarkoniaSettings = cms.vstring('PARP(141)=1.16', # Matrix Elements
133  'PARP(142)=0.0119',
134  'PARP(143)=0.01',
135  'PARP(144)=0.01',
136  'PARP(145)=0.05',
137  'PARP(146)=9.28',
138  'PARP(147)=0.15',
139  'PARP(148)=0.02',
140  'PARP(149)=0.02',
141  'PARP(150)=0.085',
142  # Meson spin
143  'PARJ(13)=0.60',
144  'PARJ(14)=0.162',
145  'PARJ(15)=0.018',
146  'PARJ(16)=0.054',
147  # Polarization
148  'MSTP(145)=0',
149  'MSTP(146)=0',
150  'MSTP(147)=0',
151  'MSTP(148)=1',
152  'MSTP(149)=1',
153  # Chi_c branching ratios
154  'BRAT(861)=0.202',
155  'BRAT(862)=0.798',
156  'BRAT(1501)=0.013',
157  'BRAT(1502)=0.987',
158  'BRAT(1555)=0.356',
159  'BRAT(1556)=0.644'
160  ),
161 
162  pythiaZtoMuons = cms.vstring("MDME(174,1)=0", # !Z decay into d dbar,
163  "MDME(175,1)=0", # !Z decay into u ubar,
164  "MDME(176,1)=0", # !Z decay into s sbar,
165  "MDME(177,1)=0", # !Z decay into c cbar,
166  "MDME(178,1)=0", # !Z decay into b bbar,
167  "MDME(179,1)=0", # !Z decay into t tbar,
168  "MDME(182,1)=0", # !Z decay into e- e+,
169  "MDME(183,1)=0", # !Z decay into nu_e nu_ebar,
170  "MDME(184,1)=1", # !Z decay into mu- mu+,
171  "MDME(185,1)=0", # !Z decay into nu_mu nu_mubar,
172  "MDME(186,1)=0", # !Z decay into tau- tau+,
173  "MDME(187,1)=0" # !Z decay into nu_tau nu_taubar
174  ),
175 
176 
177  pythiaZtoElectrons = cms.vstring("MDME(174,1)=0", # !Z decay into d dbar,
178  "MDME(175,1)=0", # !Z decay into u ubar,
179  "MDME(176,1)=0", # !Z decay into s sbar,
180  "MDME(177,1)=0", # !Z decay into c cbar,
181  "MDME(178,1)=0", # !Z decay into b bbar,
182  "MDME(179,1)=0", # !Z decay into t tbar,
183  "MDME(182,1)=1", # !Z decay into e- e+,
184  "MDME(183,1)=0", # !Z decay into nu_e nu_ebar,
185  "MDME(184,1)=0", # !Z decay into mu- mu+,
186  "MDME(185,1)=0", # !Z decay into nu_mu nu_mubar,
187  "MDME(186,1)=0", # !Z decay into tau- tau+,
188  "MDME(187,1)=0" # !Z decay into nu_tau nu_taubar
189  ),
190 
191  pythiaZtoMuonsAndElectrons = cms.vstring("MDME(174,1)=0", # !Z decay into d dbar,
192  "MDME(175,1)=0", # !Z decay into u ubar,
193  "MDME(176,1)=0", # !Z decay into s sbar,
194  "MDME(177,1)=0", # !Z decay into c cbar,
195  "MDME(178,1)=0", # !Z decay into b bbar,
196  "MDME(179,1)=0", # !Z decay into t tbar,
197  "MDME(182,1)=1", # !Z decay into e- e+,
198  "MDME(183,1)=0", # !Z decay into nu_e nu_ebar,
199  "MDME(184,1)=1", # !Z decay into mu- mu+,
200  "MDME(185,1)=0", # !Z decay into nu_mu nu_mubar,
201  "MDME(186,1)=0", # !Z decay into tau- tau+,
202  "MDME(187,1)=0" # !Z decay into nu_tau nu_taubar
203  ),
204 
205  pythiaUpsilonToMuons = cms.vstring('BRAT(1034) = 0 ', # switch off',
206  'BRAT(1035) = 1 ', # switch on',
207  'BRAT(1036) = 0 ', # switch off',
208  'BRAT(1037) = 0 ', # switch off',
209  'BRAT(1038) = 0 ', # switch off',
210  'BRAT(1039) = 0 ', # switch off',
211  'BRAT(1040) = 0 ', # switch off',
212  'BRAT(1041) = 0 ', # switch off',
213  'BRAT(1042) = 0 ', # switch off',
214  'MDME(1034,1) = 0 ', # switch off',
215  'MDME(1035,1) = 1 ', # switch on',
216  'MDME(1036,1) = 0 ', # switch off',
217  'MDME(1037,1) = 0 ', # switch off',
218  'MDME(1038,1) = 0 ', # switch off',
219  'MDME(1039,1) = 0 ', # switch off',
220  'MDME(1040,1) = 0 ', # switch off',
221  'MDME(1041,1) = 0 ', # switch off',
222  'MDME(1042,1) = 0 ', # switch off'
223  ),
224 
225  pythiaJpsiToMuons = cms.vstring('BRAT(858) = 0 ', # switch off',
226  'BRAT(859) = 1 ', # switch on',
227  'BRAT(860) = 0 ', # switch off',
228  'MDME(858,1) = 0 ', # switch off',
229  'MDME(859,1) = 1 ', # switch on',
230  'MDME(860,1) = 0 ', # switch off'
231  ),
232 
233  pythiaMuonCandidates = cms.vstring(
234  'CKIN(3)=20',
235  'MSTJ(22)=2',
236  'PARJ(71)=40.'
237  ),
238  myParameters = cms.vstring('MDCY(310,1)=0')
239 
240 )
PythiaUESettings_cfi
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