EcalTimingCalibProducer Class Reference

Plugin that derives the calibration constants. More...

#include <EcalTiming/EcalTiming/plugins/EcalTimingCalibProducer.h>

Collaboration diagram for EcalTimingCalibProducer:

[legend]

List of all members.

Private Member Functions
void	FillCalibrationCorrectionHists (EcalTimeCalibrationMap::const_iterator cal_itr)
	fill histograms with the measured shifts (that will become -corrections for the next step)
bool	addRecHit (const EcalRecHit &recHit, EventTimeMap &eventTimeMap_)
	If recHit passes the selection it is added to the list of recHits to be used for calibration.
void	plotRecHit (const EcalTimingEvent &recHit)
	Adds the recHit to the per Event histograms.
EcalTimingEvent	correctGlobalOffset (const EcalTimingEvent &ev, int splashDir, float bunchCorr)
Private Attributes
EcalTimeCalibrationMap	_timeCalibMap
	calibration map: contains the time shift for each crystal
EventTimeMap	_eventTimeMap
	container of recHits passing selection in the event (reset at each event)
EcalCrystalTimingCalibration	timeEEP
	global time calibration of EE+
EcalCrystalTimingCalibration	timeEEM
	global time calibration of EE-
EcalCrystalTimingCalibration	timeEB
	global time calibration of EB
EcalCrystalTimingCalibration	timeEBRing
	global time calibration of one EB ring
EcalCrystalTimingCalibration	timeEEmRing
	global time calibration of one EE- ring
EcalCrystalTimingCalibration	timeEEpRing
	global time calibration of one EE+ ring
EcalCrystalTimingCalibration	timeEBCRYex
	global time calibration of one EB channel
EcalCrystalTimingCalibration	timeEECRYex
	global time calibration of one EE channel
EcalTimeCalibConstants	_timeCalibConstants
	container of calibrations updated iter by iter
TProfile2D *	EneMapEEM_
	Using TProfile2D so we don't paint empty bins.
Input Parameters
Parameters defined in the config file _cfi,py
unsigned int	_maxLoop
	maximum number of loops for intercalibration
bool	_isSplash
	flag to activate for splash analysis
bool	_makeEventPlots
	flag for making plots for each event (meant for splashes)
edm::InputTag	_ecalRecHitsEBTAG
	input collection
edm::InputTag	_ecalRecHitsEETAG
	input collection
std::vector< int >	_recHitFlags
	vector containing list of valid rec hit flags for calibration
unsigned int	_recHitMin
	require at least this many rec hits to count the event
double	_minRecHitEnergy
	minimum energy for the recHit to be considered for timing studies
double	_minRecHitEnergyStep
	at each iteration the code increases the minimum energy required for the calibration
unsigned int	_minEntries
	require a minimum number of entries in a ring to do averages
float	_globalOffset
	time to subtract from every event
bool	_produceNewCalib
	true if you don't want to use the values in DB and what to extract new absolute calibrations, if false iteration does not work
std::string	_outputDumpFileName
	name of the output file for the calibration constants' dump
float	_noiseRMSThreshold
float	_noiseTimeThreshold
float	_maxSkewnessForDump

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Detailed Description

This plugin runs over the events, selects the recHits according to the criteria defined in addRecHit

Todo:

Exit condition based on convergence

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Member Function Documentation

bool EcalTimingCalibProducer::addRecHit	(	const EcalRecHit &	recHit,
		EventTimeMap &	eventTimeMap_
	)			[private]

The recHit is used (accepted) if:

• recHit flag in the list of _recHitFlags defined in the config file
• recHit energy in EB > _minRecHitEnergy defined in the config file
• recHit energy in EE is x2 the threshold of EB
• at each iteration the recHit threshold is raised by _minRecHitEnergyStep If the recHit is used, the time information is added to _eventTimeMap

References _eventTimeMap, _minRecHitEnergyStep, and _recHitFlags.

EcalTimingEvent EcalTimingCalibProducer::correctGlobalOffset	(	const EcalTimingEvent &	te,
		int	splashDir,
		float	bunchCorr
	)			[private]

Returns an EcalTimingEvent with a new time, which has been adjusted so that the upstream endcap is 0.

Parameters:

[in]	te	EcalTimingEvent
[in]	splashDir	integer indicating the beam direction in splash events
[in]	bunchCorr	float correction for global event timing
[out]	c	corrected timing event

References _globalOffset.

void EcalTimingCalibProducer::plotRecHit

(

const EcalTimingEvent &

recHit

)

[private]

fills the energy map and timing maps for EB, EE+ and EE-

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

• plugins/EcalTimingCalibProducer.h
• plugins/EcalTimingCalibProducer.cc