Configuration Files for Generator Comparison

Configuration files for MadGraph5

Configuration files for aMC@NLO

Below you can find the configuration files, which were used for the event generation in aMC@NLO.

Note

• In aMC@NLO the loop_sm model is automatically used. While in MadGraph5 the sm model is used. For that reason some default settings could be different!

Parameter Card used in aMC@NLO

This parameter card is used in aMC@NLO for the Generator Comparison.

Notes

• In aMC@NLO Version2.0.0Beta3 the default value for the Higgs boson mass was given by MH = 120 GeV.
• Since MadGraph5/aMC@NLO Version2.0.0 the default value for the Higgs boson mass is set to MH = 125 GeV.
• Deviating from the default parameter card in the above parameter card was the top quark mass set to MT = 172.5 GeV. The value for the Yukawa coupling of the top quark was changed accordingly to ymt = 172.5 GeV.

Run Cards used in aMC@NLO

Notes

• In aMC@NLO Version2.0.0Beta3 the default value for the beam energy was given by ebeam1 = ebeam2 = 3.5 TeV.
• Since MadGraph5/aMC@NLO Version2.0.0 the default value for the Higgs boson mass is set to ebeam1 = ebeam2 = 6.5 TeV.
• Normally for the event generation a beam energy of ebeam1 = ebeam2 = 8 TeV was used.
• The default number of unweighted events requested in aMC@NLO is nevents = 1E4.
• Normally for the event generation the number of requested unweighted events was increased to nevents = 1E5.
• When a fixed renormalization and factorisation scale was used, normally the renormalization and factorisation scale factor was set to muR_ref_fixed = muF1_ref_fixed = muF2_ref_fixed = 235 GeV.

The following run cards were used in aMC@NLO

• Default run card from MadGraph5/aMC@NLO Version2.0.0: Uploaded for convenience
• Run card with CTEQ6M PDF and variable renormalization and factorisation scale
• Run card with MSTW2008 PDF and fix renormalization and factorisation scale: The renormalization and factorisation scale factor was set to muR_ref_fixed = muF1_ref_fixed = muF2_ref_fixed = 235 GeV.

cmsRun Scripts

Note

• I am still working on improving and checking the cmsRun script. So it could still miss an important option!

The following script was used in CMSSW to shower and fastsim the events

• First Version of cmsRun script, which was used to shower the events at parton level with Pythia6 and use FastSim

Configuration files for showering

• PYTHIA8 - shower LHE events with PYTHIA8 in CMSSW

-- MarcoHarrendorf - 03 Feb 2014