python.PhotonAnalysisConfig.PhotonCalibrationConfig Class Reference

Inheritance diagram for python.PhotonAnalysisConfig.PhotonCalibrationConfig:

Collaboration diagram for python.PhotonAnalysisConfig.PhotonCalibrationConfig:

Public Member Functions
def	__init__ (self, containerName='')
def	makeCalibrationAndSmearingAlg (self, config, name)
def	makeAlgs (self, config)

Detailed Description

the ConfigBlock for the photon four-momentum correction

Definition at line 17 of file PhotonAnalysisConfig.py.

Constructor & Destructor Documentation

__init__()

def python.PhotonAnalysisConfig.PhotonCalibrationConfig.__init__	(		self,
			containerName = ''
	)

Definition at line 20 of file PhotonAnalysisConfig.py.

    def __init__ (self, containerName='') :
        super (PhotonCalibrationConfig, self).__init__ ()
        self.setBlockName('Photons')
        self.addOption ('containerName', containerName, type=str,
            noneAction='error',
            info="the name of the output container after calibration.")
        self.addOption ('ESModel', '', type=str,
            info="flag of egamma calibration recommendation.")
        self.addOption ('decorrelationModel', '1NP_v1', type=str,
            info="egamma energy scale decorrelationModel. The default is 1NP_v1. "
            "Supported Model: 1NP_v1, FULL_v1.")
        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 photons.")
        self.addOption ('crackVeto', False, type=bool,
            info="whether to perform LAr crack veto based on the cluster eta, "
            "i.e. remove photons within 1.37<|eta|<1.52. "
            "The default is False.")
        self.addOption ('enableCleaning', True, type=bool,
            info="whether to enable photon cleaning (DFCommonPhotonsCleaning). "
            "The default is True.")
        self.addOption ('cleaningAllowLate', False, type=bool,
            info="whether to ignore timing information in cleaning "
            "(DFCommonPhotonsCleaningNoTime). The default is False.")
        self.addOption ('recomputeIsEM', False, type=bool,
            info="whether to recompute the photon shower shape fudge "
            "corrections (sets up an instance of CP::PhotonShowerShapeFudgeAlg). "
            "The default is False, i.e. to use derivation variables.")
        self.addOption ('recalibratePhyslite', True, type=bool,
            info="whether to run the CP::EgammaCalibrationAndSmearingAlg on "
            "PHYSLITE derivations. The default is True.")
        self.addOption ('minPt', 10*GeV, type=float,
            info="the minimum pT cut to apply to calibrated photons. "
            "The default is 10 GeV.")
        self.addOption ('forceFullSimConfig', False, type=bool,
            info="whether to force the tool to use the configuration meant for "
            "full simulation samples. Only for testing purposes. "
            "The default is False.")
        self.addOption ('splitCalibrationAndSmearing', False, type=bool,
            info="EXPERIMENTAL: This splits the EgammaCalibrationAndSmearingTool "
            " into two steps. The first step applies a baseline calibration that "
            "is not affected by systematics. The second step then applies the "
            "systematics dependent corrections.  The net effect is that the "
            "slower first step only has to be run once, while the second is run "
            "once per systematic. ATLASG-2358")
        self.addOption ('decorateTruth', False, type=bool,
            info="decorate truth particle information on the reconstructed one")
 
 

Member Function Documentation

makeAlgs()

def python.PhotonAnalysisConfig.PhotonCalibrationConfig.makeAlgs	(		self,
			config
	)

Definition at line 104 of file PhotonAnalysisConfig.py.

    def makeAlgs (self, config) :
 
        log = logging.getLogger('PhotonCalibrationConfig')
 
        postfix = self.postfix
        if postfix != '' and postfix[0] != '_' :
            postfix = '_' + postfix
 
        if self.forceFullSimConfig:
            log.warning("You are running PhotonCalibrationConfig forcing full sim config")
            log.warning("This is only intended to be used for testing purposes")
 
        if config.isPhyslite() :
            config.setSourceName (self.containerName, "AnalysisPhotons")
        else :
            config.setSourceName (self.containerName, "Photons")
 
        cleaningWP = 'NoTime' if self.cleaningAllowLate else ''
 
        # Set up a shallow copy to decorate
        if config.wantCopy (self.containerName) :
            alg = config.createAlgorithm( 'CP::AsgShallowCopyAlg', 'PhotonShallowCopyAlg' + postfix )
            alg.input = config.readName (self.containerName)
            alg.output = config.copyName (self.containerName)
 
        # Set up the eta-cut on all photons prior to everything else
        alg = config.createAlgorithm( 'CP::AsgSelectionAlg', 'PhotonEtaCutAlg' + postfix )
        alg.selectionDecoration = 'selectEta' + postfix + ',as_bits'
        config.addPrivateTool( 'selectionTool', 'CP::AsgPtEtaSelectionTool' )
        alg.selectionTool.maxEta = 2.37
        if self.crackVeto:
            alg.selectionTool.etaGapLow = 1.37
            alg.selectionTool.etaGapHigh = 1.52
        alg.selectionTool.useClusterEta = True
        alg.particles = config.readName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, '')
        config.addSelection (self.containerName, '', alg.selectionDecoration)
 
        # Setup shower shape fudge
        if self.recomputeIsEM and config.dataType() is DataType.FullSim:
            alg = config.createAlgorithm( 'CP::PhotonShowerShapeFudgeAlg',
                                          'PhotonShowerShapeFudgeAlg' + postfix )
            config.addPrivateTool( 'showerShapeFudgeTool',
                                    'ElectronPhotonVariableCorrectionTool' )
            if config.geometry is LHCPeriod.Run2: 
                alg.showerShapeFudgeTool.ConfigFile = \
              'EGammaVariableCorrection/TUNE25/ElPhVariableNominalCorrection.conf'
            if config.geometry is LHCPeriod.Run3:
                alg.showerShapeFudgeTool.ConfigFile = \
              'EGammaVariableCorrection/TUNE23/ElPhVariableNominalCorrection.conf'
            alg.photons = config.readName (self.containerName)
            alg.photonsOut = config.copyName (self.containerName)
            alg.preselection = config.getPreselection (self.containerName, '')
 
        # Select photons only with good object quality.
        alg = config.createAlgorithm( 'CP::AsgSelectionAlg', 'PhotonObjectQualityAlg' + postfix )
        alg.selectionDecoration = 'goodOQ,as_bits'
        config.addPrivateTool( 'selectionTool', 'CP::EgammaIsGoodOQSelectionTool' )
        alg.selectionTool.Mask = xAOD.EgammaParameters.BADCLUSPHOTON
        alg.particles = config.readName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, '')
        config.addSelection (self.containerName, '', alg.selectionDecoration)
 
        # Select clean photons
        if self.enableCleaning:
            alg = config.createAlgorithm( 'CP::AsgSelectionAlg', 'PhotonCleaningAlg' + postfix)
            config.addPrivateTool( 'selectionTool', 'CP::AsgFlagSelectionTool' )
            alg.selectionDecoration = 'isClean,as_bits'
            alg.selectionTool.selectionFlags = ['DFCommonPhotonsCleaning' + cleaningWP]
            alg.particles = config.readName (self.containerName)
            alg.preselection = config.getPreselection (self.containerName, '')
            config.addSelection (self.containerName, '', alg.selectionDecoration)
 
        # Change the origin of Photons from (0,0,0) to (0,0,z)
        # where z comes from the position of a vertex
        # Default the one tagged as Primary
        alg = config.createAlgorithm( 'CP::PhotonOriginCorrectionAlg',
                                      'PhotonOriginCorrectionAlg' + postfix )
        alg.photons = config.readName (self.containerName)
        alg.photonsOut = config.copyName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, '')
 
        if not self.splitCalibrationAndSmearing :
            # Set up the calibration and smearing algorithm:
            alg = self.makeCalibrationAndSmearingAlg (config, 'PhotonCalibrationAndSmearingAlg')
            if config.isPhyslite() and not self.recalibratePhyslite :
                alg.skipNominal = True
        else:
            # This splits the EgammaCalibrationAndSmearingTool into two
            # steps. The first step applies a baseline calibration that
            # is not affected by systematics. The second step then
            # applies the systematics dependent corrections.  The net
            # effect is that the slower first step only has to be run
            # once, while the second is run once per systematic.
            #
            # For now (22 May 24) this has to happen in the same job, as
            # the output of the first step is not part of PHYSLITE, and
            # even for the nominal the output of the first and second
            # step are different.  In the future the plan is to put both
            # the output of the first and second step into PHYSLITE,
            # allowing to skip the first step when running on PHYSLITE.
            #
            # WARNING: All of this is experimental, see: ATLASG-2358
 
            # Set up the calibration algorithm:
            alg = self.makeCalibrationAndSmearingAlg (config, 'PhotonBaseCalibrationAlg')
            # turn off systematics for the calibration step
            alg.noToolSystematics = True
            # turn off smearing for the calibration step
            alg.calibrationAndSmearingTool.doSmearing = False
 
            # Set up the smearing algorithm:
            alg = self.makeCalibrationAndSmearingAlg (config, 'PhotonCalibrationSystematicsAlg')
            # turn off scale corrections for the smearing step
            alg.calibrationAndSmearingTool.doScaleCorrection = False
            alg.calibrationAndSmearingTool.useMVACalibration = False
 
        if self.minPt > 0:
            # Set up the the pt selection
            alg = config.createAlgorithm( 'CP::AsgSelectionAlg', 'PhotonPtCutAlg' + postfix )
            alg.selectionDecoration = 'selectPt' + postfix + ',as_bits'
            config.addPrivateTool( 'selectionTool', 'CP::AsgPtEtaSelectionTool' )
            alg.selectionTool.minPt = self.minPt
            alg.particles = config.readName (self.containerName)
            alg.preselection = config.getPreselection (self.containerName, '')
            config.addSelection (self.containerName, '', alg.selectionDecoration,
                                preselection=True)
 
        # Set up the isolation correction algorithm.
        alg = config.createAlgorithm( 'CP::EgammaIsolationCorrectionAlg',
                                      'PhotonIsolationCorrectionAlg' + postfix )
        config.addPrivateTool( 'isolationCorrectionTool',
                               'CP::IsolationCorrectionTool' )
        alg.isolationCorrectionTool.IsMC = config.dataType() is not DataType.Data
        alg.isolationCorrectionTool.AFII_corr = (
                0 if self.forceFullSimConfig
                else config.dataType() is DataType.FastSim)
        alg.egammas = config.readName (self.containerName)
        alg.egammasOut = config.copyName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, '')
 
        # Additional decorations
        alg = config.createAlgorithm( 'CP::AsgEnergyDecoratorAlg', 'EnergyDecorator' + self.containerName + self.postfix )
        alg.particles = config.readName (self.containerName)
 
        config.addOutputVar (self.containerName, 'pt', 'pt')
        config.addOutputVar (self.containerName, 'eta', 'eta', noSys=True)
        config.addOutputVar (self.containerName, 'phi', 'phi', noSys=True)
        config.addOutputVar (self.containerName, 'e_%SYS%', 'e')
 
        # decorate truth information on the reconstructed object:
        if self.decorateTruth and config.dataType() is not DataType.Data:
            config.addOutputVar (self.containerName, "truthType", "truth_type", noSys=True)
            config.addOutputVar (self.containerName, "truthOrigin", "truth_origin", noSys=True)
 
 

makeCalibrationAndSmearingAlg()

def python.PhotonAnalysisConfig.PhotonCalibrationConfig.makeCalibrationAndSmearingAlg	(		self,
			config,
			name
	)

Create the calibration and smearing algorithm

Factoring this out into its own function, as we want to
instantiate it in multiple places

Definition at line 70 of file PhotonAnalysisConfig.py.

    def makeCalibrationAndSmearingAlg (self, config, name) :
        """Create the calibration and smearing algorithm
 
        Factoring this out into its own function, as we want to
        instantiate it in multiple places"""
        # Set up the calibration and smearing algorithm:
        alg = config.createAlgorithm( 'CP::EgammaCalibrationAndSmearingAlg', name + self.postfix )
        config.addPrivateTool( 'calibrationAndSmearingTool',
                               'CP::EgammaCalibrationAndSmearingTool' )
        # Set default ESModel per period
        if self.ESModel:
            alg.calibrationAndSmearingTool.ESModel = self.ESModel
        else:
            if config.geometry() is LHCPeriod.Run2:
                alg.calibrationAndSmearingTool.ESModel = 'es2023_R22_Run2_v0'
            elif config.geometry() is LHCPeriod.Run3:
                alg.calibrationAndSmearingTool.ESModel = 'es2022_R22_PRE'
            elif config.geometry() is LHCPeriod.Run4:
                logging.warning("No ESModel set for Run4, using Run3 model")
                alg.calibrationAndSmearingTool.ESModel = 'es2022_R22_PRE'
            else:
                raise ValueError (f"Can't set up the ElectronCalibrationConfig with {config.geometry().value}, "
                                  "there must be something wrong!")
 
        alg.calibrationAndSmearingTool.decorrelationModel = self.decorrelationModel
        alg.calibrationAndSmearingTool.useFastSim = (
            0 if self.forceFullSimConfig
            else int( config.dataType() is DataType.FastSim ))
        alg.egammas = config.readName (self.containerName)
        alg.egammasOut = config.copyName (self.containerName)
        alg.preselection = config.getPreselection (self.containerName, '')
        return alg
 
 

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The documentation for this class was generated from the following file:

• PhotonAnalysisConfig.py