Signal production using SHERPA generator:

General instruction for running SHERPA in CMSSW (< 3_5_8) :

cmsrel CMSSW_3_5_6
cd CMSSW_3_5_6/src/
cmsenv
cvs co -r CMSSW_3_5_6 GeneratorInterface/SherpaInterface/data
tar -czf sherpa_TEST_cards.tgz Run.dat Analysis.dat
 ./MakeSherpaLibs.sh -d $CMSSW_BASE -i ./ -p TEST
cmsRun sherpa_cfg.py

To produce SIM-RECO root files one can use the libraries already available on lxplus. The following instructions can be used to produce the SIM files for MD1d2:

cmsrel CMSSW_3_5_6
cd CMSSW_3_5_6/src/
cmsenv
cvs co -r CMSSW_3_5_6 GeneratorInterface/SherpaInterface/data
cvs co -r CMSSW_3_5_6 Configuration/Generator/
cp -r ~berzano/public/MonoPhoton/Production_Cards/3_5_2_50GeVcut/MD1d2/* GeneratorInterface/SherpaInterface/data/
cp GeneratorInterface/SherpaInterface/data/sherpa_MD1d2_cff.py Configuration/Generator/python
scram b
cd GeneratorInterface/SherpaInterface/data/
tar -xvf sherpa_MD1d2_MASTER.tgz 

Create the card:

cmsDriver.py sherpa_MD1d2_cff.py -s GEN,SIM,DIGI,L1,DIGI2RAW,HLT --conditions START3X_V25::All --datatier GEN-SIM-RAW --eventcontent RAWSIM --no_exec -n 10

Edit the sherpa_MD1d2_cff_py_GEN_SIM_DIGI_L1_DIGI2RAW_HLT.py adding the line:

process.genParticles.abortOnUnknownPDGCode = False

and run it:

cmsRun sherpa_MD1d2_cff_py_GEN_SIM_DIGI_L1_DIGI2RAW_HLT.py

The SIM production performances are (time per event, file size per event):

The RECO cfg file can be obtained in the same way with cmsDriver.py:

cmsDriver.py sherpa_cfi_py_GEN_SIM_DIGI_L1_DIGI2RAW_HLT_MC.py -s RAW2DIGI,RECO --datatier GEN-SIM-RECO --eventcontent RECOSIM --conditions FrontierConditions_GlobalTag,START3X_V25::All --no_exec

Please pay attention that the input source filename must be the one of the SIM root file created before.

Signal cross sections from SHERPA 1.1.2 and CMSSW_3_5_6:

Back to main Mono-Photon page.

-- UmbertoBerzano - 07-Apr-2010