DiTauAnalysisConfig.py

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# Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
 
# AnaAlgorithm import(s):
from AnalysisAlgorithmsConfig.ConfigBlock import ConfigBlock
from AnalysisAlgorithmsConfig.ConfigAccumulator import DataType
 
 
class DiTauCalibrationConfig (ConfigBlock):
    """the ConfigBlock for the tau four-momentum correction"""
 
    def __init__ (self) :
        super (DiTauCalibrationConfig, self).__init__ ()
        self.setBlockName('DiTaus')
        self.addOption ('inputContainer', '', type=str,
            info="select ditau input container, by default set to DiTauJets")
        self.addOption ('containerName', '', type=str,
            noneAction='error',
            info="the name of the output container after calibration.")
        self.addOption ('postfix', '', type=str,
            info="a postfix to apply to decorations and algorithm names. "
            "Typically not needed here since the calibration is common to "
            "all ditaus.")
        self.addOption ('rerunTruthMatching', True, type=bool,
            info="whether to rerun truth matching (sets up an instance of "
            "CP::DiTauTruthMatchingAlg). The default is True.")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        return self.containerName + self.postfix
 
    def makeAlgs (self, config) :
 
        postfix = self.postfix
        if postfix != '' and postfix[0] != '_' :
            postfix = '_' + postfix
 
        inputContainer = "DiTauJets"
        if self.inputContainer:
            inputContainer = self.inputContainer
        config.setSourceName (self.containerName, inputContainer)
 
        # Set up the tau truth matching algorithm:
        if self.rerunTruthMatching and config.dataType() is not DataType.Data:
            alg = config.createAlgorithm( 'CP::DiTauTruthMatchingAlg',
                                   'DiTauTruthMatchingAlg' )
            config.addPrivateTool( 'matchingTool',
                            'TauAnalysisTools::DiTauTruthMatchingTool' )
            alg.taus = config.readName (self.containerName)
            alg.preselection = config.getPreselection (self.containerName, '')
 
        # Set up the tau 4-momentum smearing algorithm:
        alg = config.createAlgorithm( 'CP::DiTauSmearingAlg', 'DiTauSmearingAlg' )
        config.addPrivateTool( 'smearingTool', 'TauAnalysisTools::DiTauSmearingTool' )
        alg.taus = config.readName (self.containerName)
        alg.tausOut = config.copyName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, '')
 
 
class DiTauWorkingPointConfig (ConfigBlock) :
    """the ConfigBlock for the tau working point
 
    This may at some point be split into multiple blocks (16 Mar 22)."""
 
    def __init__ (self) :
        super (DiTauWorkingPointConfig, self).__init__ ()
        self.addOption ('containerName', '', type=str,
            noneAction='error',
            info="the name of the input container.")
        self.addOption ('selectionName', '', type=str,
            noneAction='error',
            info="the name of the tau-jet selection to define (e.g. tight or "
            "loose).")
        self.addOption ('postfix', None, type=str,
            info="a postfix to apply to decorations and algorithm names. "
            "Typically not needed here as selectionName is used internally.")
        self.addOption ('quality', None, type=str,
            info="the ID WP (string) to use. Supported ID WPs: Tight, Medium, "
            "Loose, VeryLoose, Baseline, BaselineForFakes.")
        self.addOption ('addSelectionToPreselection', True, type=bool,
            info="whether to retain only ditau-jets satisfying the working point "
            "requirements. The default is True.")
 
    def instanceName (self) :
        """Return the instance name for this block"""
        if self.postfix is not None:
            return self.containerName + '_' + self.selectionName + self.postfix
        else:
            return self.containerName + '_' + self.selectionName
 
    def makeAlgs (self, config) :
 
        selectionPostfix = self.selectionName
        if selectionPostfix != '' and selectionPostfix[0] != '_' :
            selectionPostfix = '_' + selectionPostfix
          
        postfix = self.postfix
        if postfix is None :
            postfix = self.selectionName
        if postfix != '' and postfix[0] != '_' :
            postfix = '_' + postfix
 
        # using enum value from: https://gitlab.cern.ch/atlas/athena/blob/21.2/PhysicsAnalysis/TauID/TauAnalysisTools/TauAnalysisTools/Enums.h
        # the dictionary is missing in Athena, so hard-coding values here
        if self.quality == 'Tight' :
            IDLevel = 4 # ROOT.TauAnalysisTools.JETIDBDTTIGHT
        elif self.quality == 'Medium' :
            IDLevel = 3 # ROOT.TauAnalysisTools.JETIDBDTMEDIUM
        elif self.quality == 'Loose' :
            IDLevel = 2 # ROOT.TauAnalysisTools.JETIDBDTLOOSE
        else :
            raise ValueError ("invalid tau quality: \"" + self.quality +
                              "\", allowed values are Tight, Medium, Loose")
 
        inputfile = 'TauAnalysisAlgorithms/ditau_selection_highpt.conf'
        if "DiTauJetsLowPt" in self.containerName:
            inputfile = 'TauAnalysisAlgorithms/ditau_selection_lowpt.conf' 
 
        # Set up the algorithm selecting taus:
        alg = config.createAlgorithm( 'CP::AsgSelectionAlg', 'DiTauSelectionAlg' )
        config.addPrivateTool( 'selectionTool', 'TauAnalysisTools::DiTauSelectionTool' )
        alg.selectionTool.ConfigPath = inputfile
        alg.selectionDecoration = 'selected_ditau' + selectionPostfix + ',as_char'
        alg.particles = config.readName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, self.selectionName)
        config.addSelection (self.containerName, self.selectionName, alg.selectionDecoration,
                             preselection=self.addSelectionToPreselection) 
 
 
        # Set up the algorithm calculating the efficiency scale factors for the
        # taus:
        if config.dataType() is not DataType.Data:
            alg = config.createAlgorithm( 'CP::DiTauEfficiencyCorrectionsAlg',
                                   'DiTauEfficiencyCorrectionsAlg' )
            config.addPrivateTool( 'efficiencyCorrectionsTool',
                            'TauAnalysisTools::DiTauEfficiencyCorrectionsTool' )
            alg.efficiencyCorrectionsTool.JetIDLevel = IDLevel
            alg.scaleFactorDecoration = 'tau_effSF' + postfix + '_%SYS%'
            # alg.outOfValidity = 2 #silent
            # alg.outOfValidityDeco = "bad_eff"
            alg.taus = config.readName (self.containerName)
            alg.preselection = config.getPreselection (self.containerName, self.selectionName)
            config.addOutputVar (self.containerName, alg.scaleFactorDecoration,
                                 'effSF' + postfix)