B2A111-SimulateMuonPairs.py

#!/usr/bin/env python3
 
 
 
 
 
import basf2 as b2
from simulation import add_simulation
from reconstruction import add_reconstruction
from beamparameters import add_beamparameters
from mdst import add_mdst_output
 
# create path
main = b2.create_path()
 
# Setting up number of events to generate
main.add_module('EventInfoSetter', evtNumList=[10])
 
beamparameters = add_beamparameters(main, "Y4S")
beamparameters.param("smearVertex", False)
beamparameters.param("smearEnergy", False)
b2.print_params(beamparameters)
 
# muon pair generator (BABAYAGA.NLO, born only)
main.add_module('BabayagaNLOInput',
                FinalState='mm',
                SearchMax=10000,
                VacuumPolarization='hlmnt',
                Order='born',
                MaxAcollinearity=180.,
                DebugEnergySpread=5.e-3,
                ScatteringAngleRange=[15.0, 165.0],
                VPUncertainty=True)
 
# detector simulation
add_simulation(path=main)
 
# reconstruction
add_reconstruction(path=main)
 
# mdst output
add_mdst_output(
    path=main,
    mc=True,
    filename='B2A111-SimulateMuonPairs.root',
    additionalBranches=[
        'MCInitialParticles'])
 
# display a progress bar while running
main.add_module('ProgressBar')
 
# process events and print call statistics
b2.process(main)
print(b2.statistics)