B2A101-Y4SEventGeneration.py

#!/usr/bin/env python3
 
 
 
 
 
import basf2 as b2
import generators as ge
import modularAnalysis as ma
 
# generation of 100 events according to the specified DECAY table
# Y(4S) -> Btag- Bsig+
# Btag- -> D0 pi-; D0 -> K- pi+
# Bsig+ -> mu+ nu_mu
#
 
# Defining custom path
my_path = b2.create_path()
 
# Setting up number of events to generate
ma.setupEventInfo(noEvents=100, path=my_path)
 
# Adding genberator
ge.add_evtgen_generator(path=my_path,
                        finalstate='signal',
                        signaldecfile=b2.find_file(
                            'analysis/examples/simulations/B2A101-Y4SEventGeneration.dec'))
 
# dump generated events in DST format to the output ROOT file
my_path.add_module('RootOutput', outputFileName='B2A101-Y4SEventGeneration-evtgen.root')
 
# process all modules added to the path
b2.process(path=my_path)
 
# print out the summary
print(b2.statistics)