# steering file based on example from Sherpa 1.2.2 distribution: # share/SHERPA-MC/Examples/LEP91/Run.dat # # also, see more details on the example here: # http://projects.hepforge.org/sherpa/doc/SHERPA-MC-1.2.2.html#LEP91 (run){ # disable colorizing of text printed on screen: PRETTY_PRINT = Off # number of events: EVENTS = 100000 # set random seed: # (see section "6.1.3 RANDOM_SEED" of Sherpa manual for details) RANDOM_SEED = 3 1 1 1 # Event output file: EVENT_OUTPUT = HepMC_GenEvent[sherpa] # full name of output file will be: # "sherpa.hepmc2g" PARTICLE_CONTAINER 901 jLight 1 -1 2 -2 3 -3 4 -4 21 # LEP: Make particles with c*tau > 100 mm stable: # (E.g., K0S, Lambda, Sigma, Xi, Omega are treated as *unstable*.) MAX_PROPER_LIFETIME = 100.0 # disable splitting of HepMC output file: FILE_SIZE = 1000000000 }(run) (beam){ BEAM_1 = 11; BEAM_ENERGY_1 = 100.; BEAM_2 = -11; BEAM_ENERGY_2 = 100.; }(beam) # switch off ISR (LEP data already corrected for ISR effect) (isr){ ISR_1 = Off ISR_2 = Off # switch off lepton PDFs PDF_SET_1 = No PDF_SET_2 = No } ## For Four-jet angles, no hadronization, uncomment this #(fragmentation){ # FRAGMENTATION = Off #}(fragmentation) (processes){ # Note: process list structured to allow to switch b mass on/off # without changing the run card Process 11 -11 -> 901 901 901{2}; CKKW pow(10,-2.25); Order (*,2); End process; Process 11 -11 -> 5 -5 901{2}; CKKW pow(10,-2.25); Order (*,2); End process; Process 11 -11 -> 5 -5 5 -5; CKKW pow(10,-2.25); Cut_Core 1; Order (*,2); End process; }(processes) (me){ ME_SIGNAL_GENERATOR = Internal Comix }(me) # Parameter specifications for 'default': # --------------------------------------------- #%tuneFile% # ---------------------------------------------