B2A102-SimulateAndReconstruct.py

#!/usr/bin/env python3
 
 
import basf2 as b2
import mdst as mdst
import simulation as si
import reconstruction as re
import modularAnalysis as ma
 
# We previously generated events but we want to simulate them with the
# currently best values, not whatever whas valid back then. So we have to
# disable reuse of the same globaltag from when the events were generated
b2.conditions.disable_globaltag_replay()
 
# create path
my_path = b2.create_path()
 
# load input ROOT file
ma.inputMdst(environmentType='None',
             filename=b2.find_file('B2pi0D_D2hh_D2hhh_B2munu_evtgen.root', 'examples', False),
             path=my_path)
 
# simulation
si.add_simulation(path=my_path)
 
# reconstruction
re.add_reconstruction(path=my_path)
 
# dump in MDST format
mdst.add_mdst_output(path=my_path,
                     mc=True,
                     filename='B2pi0D_D2hh_D2hhh_B2munu.root')
 
# Show progress of processing
progress = b2.register_module('ProgressBar')
my_path.add_module(progress)
 
# Process the events
b2.process(my_path)
 
# print out the summary
print(b2.statistics)