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Published byMervin Hector Reeves Modified over 9 years ago
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Monte-Carlo event generation for CEPC 1 Xin Mo Institute of High Energy Physics Oct. 19, 2015 Monte-Carlo event generation for the CEPC
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Outline 2 Monte-Carlo event generation for the CEPC Introduction of CEPC generation work Basic information Higgs physics NLO plans Electroweak & QCD Sample & validation
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Basic information 3 Monte-Carlo event generation for the CEPC Generator Matrix element: Whizard1.95 Shower & hadronization: Pythia6.4 Sample information: CM energy: 250GeV Luminosity: 5000fb -1 Polarization: unpolarized ISR: on Beamstrahlung: off
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Workflow 4 Monte-Carlo event generation for the CEPC
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Stdhep 5 Monte-Carlo event generation for the CEPC Root Marlin Whizard, Pythia Geant4, Mokka Stdhep
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Physics 6 Signal part (Higgs) SM Background Monte-Carlo event generation for the CEPC 2 fermions 4 fermions
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Higgs signal 7 Vector boson fusion Higgs-strahlung Monte-Carlo event generation for the CEPC
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8 WW type Classification of 4 fermions Monte-Carlo event generation for the CEPC ZZ type Single W type Single Z type Single mixing type Mixing type
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Summary table 9 240GeV250GeV qq 5466250216 μ+μ-μ+μ- 46854405 single Z 45384734 single W 50865144 W+W-W+W- 1600415484 ZZ 10791033 ZH 203212 W fusion 5.366.72 Z fusion 0.500.63 Cross sections [fb] Monte-Carlo event generation for the CEPC
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Number of events 10 Monte-Carlo event generation for the CEPC
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NLO process 11 Monte-Carlo event generation for the CEPC Leading order: Next-to-Leading order: Radiation Vertex correctionLoop correction Omega Openloops
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Interfaces 12 OpenLoops for one-loop calculation; QCD correction Powheg for shower matching stdhep, lcio, lhe outputs Monte-Carlo event generation for the CEPC
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Cross sections 13 Monte-Carlo event generation for the CEPC NLOLO uu1112110760 dd102279829 cc1106810459 ss101009902 bb102379822 250GeV ISR & beamstrahlung LO vs NLO
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NLO event generation 14 Monte-Carlo event generation for the CEPC Whizard Pythia8 LHEF Powheg Openloops HepMC Loop calculation Matching Hadronize
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Validation 15 Monte-Carlo event generation for the CEPC Monte-Carlo truth level Fast simulationFull simulation
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Invariant mass check 16 Monte-Carlo event generation for the CEPC Monte-Carlo truth LO vs NLO
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Some plans for future 17 Monte-Carlo event generation for the CEPC Validation for benchmark samples A cross check Madgraph, Powheg My Email address: moxin@ihep.ac.cnmoxin@ihep.ac.cn Office:Main building room B229 in IHEP
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Thanks 18 Monte-Carlo event generation for the CEPC
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Backup 19 Monte-Carlo event generation for the CEPC Backup
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