klm_calibration_utils.py

# -*- coding: utf-8 -*-
 
"""Implements some extra utilities for doing KLM calibration with the CAF."""
 
import basf2
 
from rawdata import add_unpackers
from reconstruction import add_cosmics_reconstruction, add_reconstruction, prepare_cdst_analysis
from softwaretrigger.constants import RAWDATA_OBJECTS
import modularAnalysis as ma
 
 
def get_channel_status_pre_collector_path(entry_sequence=""):
    """
    Parameters:
        entry_sequence  (str): A single entry sequence e.g. '0:100' to help limit processed events.
 
    Returns:
        basf2.Path:  A reconstruction path to run before the collector. Used for raw cosmic input files.
    """
    main = basf2.create_path()
    if entry_sequence:
        main.add_module('RootInput',
                        entrySequences=[entry_sequence])
 
    # KLM unpacker.
    add_unpackers(main, components=['KLM'])
 
    return main
 
 
def get_alignment_pre_collector_path_cosmic(entry_sequence=""):
    """
    Parameters:
        entry_sequence  (str): A single entry sequence e.g. '0:100' to help limit processed events.
 
    Returns:
        basf2.Path:  A reconstruction path to run before the collector. Used for raw cosmic input files.
    """
    main = basf2.create_path()
    root_input = basf2.register_module(
        'RootInput',
        branchNames=RAWDATA_OBJECTS + ['EventMetaData'])
    if entry_sequence:
        root_input.param('entrySequences', [entry_sequence])
    main.add_module(root_input)
 
    # Unpackers and reconstruction.
    add_unpackers(main)
    add_cosmics_reconstruction(main, pruneTracks=False, add_muid_hits=True,
                               merge_tracks=False)
    # Disable the time window in muid module by setting it to 1 second.
    # This is necessary because the  alignment needs to be performed before
    # the time calibration; if the time window is not disabled, then all
    # scintillator hits are rejected.
    basf2.set_module_parameters(main, 'Muid', MaxDt=1e9)
 
    main.add_module('DAFRecoFitter',
                    pdgCodesToUseForFitting=[13],
                    resortHits=True)
 
    main.add_module('SetupGenfitExtrapolation',
                    noiseBetheBloch=False,
                    noiseCoulomb=False,
                    noiseBrems=False)
 
    return main
 
 
def get_alignment_pre_collector_path_physics(entry_sequence=""):
    """
    Parameters:
        entry_sequence  (str): A single entry sequence e.g. '0:100' to help limit processed events.
 
    Returns:
        basf2.Path:  A reconstruction path to run before the collector. Used for raw physics input files.
    """
    main = basf2.create_path()
    root_input = basf2.register_module(
        'RootInput',
        branchNames=RAWDATA_OBJECTS + ['EventMetaData'])
    if entry_sequence:
        root_input.param('entrySequences', [entry_sequence])
    main.add_module(root_input)
 
    # Unpackers and reconstruction.
    add_unpackers(main)
    add_reconstruction(main, pruneTracks=False, add_muid_hits=True)
    # Disable the time window in muid module by setting it to 1 second.
    # This is necessary because the  alignment needs to be performed before
    # the time calibration; if the time window is not disabled, then all
    # scintillator hits are rejected.
    basf2.set_module_parameters(main, 'Muid', MaxDt=1e9)
 
    main.add_module('DAFRecoFitter', resortHits=True)
 
    main.add_module('SetupGenfitExtrapolation',
                    noiseBetheBloch=False,
                    noiseCoulomb=False,
                    noiseBrems=False)
 
    return main
 
 
def get_strip_efficiency_pre_collector_path(entry_sequence="", raw_format=True):
    """
    Parameters:
        entry_sequence  (str): A single entry sequence e.g. '0:100' to help limit processed events.
        raw_format  (bool): True if cDST input files are in the raw+tracking format.
 
    Returns:
        basf2.Path:  A reconstruction path to run before the collector. Used for cDST input files.
    """
    main = basf2.create_path()
    if entry_sequence:
        main.add_module('RootInput',
                        entrySequences=[entry_sequence])
    if raw_format:
        prepare_cdst_analysis(main)
    else:
        main.add_module('Gearbox')
        main.add_module('Geometry')
 
    # Fill muon particle list
    ma.fillParticleList('mu+:klmStripEfficiency',
                        '[1 < p] and [p < 11] and [abs(d0) < 2] and [abs(z0) < 5]',
                        path=main)
 
    return main