# steering file based on example from Sherpa 1.2.3 distribution: # share/SHERPA-MC/Examples/Tevatron_TopPair/Run.dat (run){ # disable colorizing of text printed on screen: PRETTY_PRINT = Off # number of events: EVENTS = 25000 # set random seed: # (see section "6.1.3 RANDOM_SEED" of Sherpa manual for details) RANDOM_SEED = 17 1 # Event output file: HEPMC2_GENEVENT_OUTPUT = sherpa # full name of output file will be: # "sherpa.hepmc2g" # disable splitting of HepMC output file: FILE_SIZE = 1000000000 # Makes particles with c*tau > 10 mm stable: MAX_PROPER_LIFETIME = 10.0 }(run) (beam){ BEAM_1 = 2212; BEAM_ENERGY_1 = 3500.; BEAM_2 = 2212; BEAM_ENERGY_2 = 3500.; }(beam) # Setup for semi-leptonic ttbar (90:lepton; 91:neutrino; 94:quark) plus up to one CKKW-merged jet # Allow slightly lower precision on tt+jet cross sections (processes){ Process 93 93 -> 6[a] -6[b] 93{1}; DecayOS 6[a] -> 5 24[c]; DecayOS 24[c] -> 90 91; DecayOS -6[b] -> -5 -24[d]; DecayOS -24[d] -> 94 94; CKKW sqr(20/E_CMS); Integration_Error 0.01 {3}; End process; Process 93 93 -> 6[a] -6[b] 93{1}; DecayOS 6[a] -> 5 24[c]; DecayOS 24[c] -> 94 94; DecayOS -6[b] -> -5 -24[d]; DecayOS -24[d] -> 90 91; CKKW sqr(20/E_CMS); Integration_Error 0.01 {3}; End process; }(processes) #(selector){ # # Set cuts # # Use this for hard leading jets in a certain pT window # NJetFinder 2 0 0.0 1.0 # set min pT # ## Or this? # #PT 93 0 7000 # # # Use this for hard leading jets in a certain mass window # Mass 93 93 0 7000 # #}(selector) (me){ ME_SIGNAL_GENERATOR = Comix }(me) (mi){ MI_HANDLER = Amegic # None or Amisic }(mi) # Parameter specifications for 'default': ------------------- #%tuneFile% # ---------------------------------------------