JERSmearingTool Class Reference

#include <JERSmearingTool.h>

Inheritance diagram for JERSmearingTool:

List of all members.

Public Member Functions
	JERSmearingTool (const std::string &name)
	Proper constructor for Athena.
	JERSmearingTool (const JERSmearingTool &other)
	Copy constructor for reflex in Athena.
JERSmearingTool &	operator= (const JERSmearingTool &)
	We shouldn't need assignment; regardless, it's not implemented.
Methods implementing the asg::IAsgTool interface
virtual StatusCode	initialize ()
	Initialize the tool.
Methods implementing the IJERSmearingTool interface
virtual CP::CorrectionCode	applyCorrection (xAOD::Jet &jet)
	Apply the JER correction on a modifiable jet.
virtual CP::CorrectionCode	correctedCopy (const xAOD::Jet &input, xAOD::Jet *&output)
	Create a JER-corrected copy from a const jet.
virtual void	setRandomSeed (long int seed)
Methods implementing the ISystematicsTool interface
virtual bool	isAffectedBySystematic (const CP::SystematicVariation &systematic) const
	Specify whether tool is affected by provided systematic.
virtual CP::SystematicSet	affectingSystematics () const
	List of all systematics affecting this tool.
virtual CP::SystematicSet	recommendedSystematics () const
	List of all systematics recommended for this tool.
virtual CP::SystematicCode	applySystematicVariation (const CP::SystematicSet &systematics)
	Configure tool to apply systematic variation.
Protected Member Functions
double	getSmearingFactorNom (const xAOD::Jet *jet)
	Get nominal smearing factor.
double	getSmearingFactorSys (const xAOD::Jet *jet)
	Get the systematic uncert smearing factor.
double	getSmearingFactor (const xAOD::Jet *jet, double sigma)
	Calculate the random gaussian smear factor for a requested sigma.

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Detailed Description

Implementation of the dual-use JER smearing tool interface

This tool allows to smear the energy of jets either to correct the jet energy resolution or to evaluate systematic uncertainties. For information, see the Twiki: https://twiki.cern.ch/twiki/bin/view/AtlasProtected/JetEnergyResolutionXAODTools

Author:

Steve Farrell <steven.farrell@cern.ch>

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Constructor & Destructor Documentation

JERSmearingTool::JERSmearingTool

(

const std::string &

name

)

Proper constructor for Athena.

Standard constructor for standalone usage

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Member Function Documentation

virtual void JERSmearingTool::setRandomSeed

(

long int

seed

)

[inline, virtual]

Optional method to set random seed. Note that the tool already has a deterministic way to do this using the jet phi.

Implements IJERSmearingTool.

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

• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.28/JetResolution/JetResolution/JERSmearingTool.h
• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.28/JetResolution/Root/JERSmearingTool.cxx