cdst_checkT0calibration.py

#!/usr/bin/env python3
 
 
 
# ---------------------------------------------------------------------------------------
# Check T0 calibration with Bhabha (or dimuon) events. Results in a root file.
#
# usage: basf2 cdst_checkT0calibration.py -i <cdst_file.root>
# ---------------------------------------------------------------------------------------
 
import basf2 as b2
from reconstruction import prepare_user_cdst_analysis
 
# global tags
# ******************************************************************************************************************
# note: The patching global tags and their order are bucket number and basf2 version dependent.
#       Given below is what is needed for cdst files of bucket 16 calibration and January-2023 development version.
# ******************************************************************************************************************
b2.conditions.override_globaltags()
b2.conditions.append_globaltag('patch_main_release-07_noTOP')
b2.conditions.append_globaltag('data_reprocessing_proc13')  # experiments 7 - 18
# b2.conditions.append_globaltag('data_reprocessing_prompt')  # experiments 20 - 26
b2.conditions.append_globaltag('online')
 
# Create path
main = b2.create_path()
 
# Input: cDST file(s) of Bhabha skim, use -i option
# files of bucket 16 can be found on KEKCC in /gpfs/group/belle2/dataprod/Data/PromptReco/bucket16_calib/
roinput = b2.register_module('RootInput')
main.add_module(roinput)
 
# run unpackers and post-tracking reconstruction
prepare_user_cdst_analysis(main)
 
# Calibration checker: for dimuon sample replace 'bhabha' with 'dimuon'
calibrator = b2.register_module('TOPChannelT0Calibrator')
calibrator.param('sample', 'bhabha')
calibrator.param('outputFileName', 'checkT0cal_r*.root')
main.add_module(calibrator)
 
# Print progress
progress = b2.register_module('Progress')
main.add_module(progress)
 
# Process events
b2.process(main)
 
# Print statistics
print(b2.statistics)