#include <HcalHFStatusBitFromDigis.h>

Public Member Functions
	HcalHFStatusBitFromDigis ()

	HcalHFStatusBitFromDigis (const edm::ParameterSet &HFDigiTimeParams, const edm::ParameterSet &HFTimeInWindowParams)

void	hfSetFlagFromDigi (HFRecHit &hf, const HFDataFrame &digi, const HcalCoder &coder, const HcalCalibrations &calib)

void	resetFlagTimeSamples (int firstSample, int samplesToAdd, int expectedPeak)

void	resetParamsFromDB (int firstSample, int samplesToAdd, int expectedPeak, double minthreshold, const std::vector< double > &coef)

	~HcalHFStatusBitFromDigis ()

Private Attributes
std::vector< double >	coef_

int	expectedPeak_

int	firstSample_

double	HFlongwindowEthresh_

std::vector< double >	HFlongwindowMaxTime_

std::vector< double >	HFlongwindowMinTime_

double	HFshortwindowEthresh_

std::vector< double >	HFshortwindowMaxTime_

std::vector< double >	HFshortwindowMinTime_

double	minthreshold_

int	recoFirstSample_

int	recoSamplesToAdd_

int	samplesToAdd_

Detailed Description

This class sets status bit in the status words for the revised CaloRecHit objets according to informatino from the digi associated to the hit.

Author: J. Temple – University of Maryland and E. Yazgan

Definition at line 18 of file HcalHFStatusBitFromDigis.h.

Constructor & Destructor Documentation

HcalHFStatusBitFromDigis::HcalHFStatusBitFromDigis ( )

Full featured constructor for HB/HE and HO (HPD-based detectors)

Definition at line 8 of file HcalHFStatusBitFromDigis.cc.

References coef_, expectedPeak_, firstSample_, HFlongwindowEthresh_, HFlongwindowMaxTime_, HFlongwindowMinTime_, HFshortwindowEthresh_, HFshortwindowMaxTime_, HFshortwindowMinTime_, minthreshold_, and samplesToAdd_.

 {
   // use simple values in default constructor
   minthreshold_=40; // minimum energy threshold (in GeV)
 
   firstSample_=1; // these are the firstSample, samplesToAdd value of Igor's algorithm -- not necessarily the same as the reco first, toadd values (which are supplied individually for each hit)
   samplesToAdd_=3;
   expectedPeak_=2;
 
   // Based on Igor V's algorithm:
   //TS4/(TS3+TS4+TS5+TS6) > 0.93 - exp(-0.38275-0.012667*E)
   coef_.push_back(0.93);
   coef_.push_back(-0.38275);
   coef_.push_back(-0.012667);
  // Minimum energy of 10 GeV required
   HFlongwindowEthresh_=40;
   HFlongwindowMinTime_.clear();
   HFlongwindowMinTime_.push_back(-10);
   HFlongwindowMaxTime_.clear();
   HFlongwindowMaxTime_.push_back(8);
   HFshortwindowEthresh_=40;
   HFshortwindowMinTime_.clear();
   HFshortwindowMinTime_.push_back(-10);
   HFshortwindowMaxTime_.clear();
   HFshortwindowMaxTime_.push_back(8);
 }

HcalHFStatusBitFromDigis::HcalHFStatusBitFromDigis	(	const edm::ParameterSet &	HFDigiTimeParams,
		const edm::ParameterSet &	HFTimeInWindowParams
	)

Definition at line 35 of file HcalHFStatusBitFromDigis.cc.

References coef_, expectedPeak_, firstSample_, edm::ParameterSet::getParameter(), HFlongwindowEthresh_, HFlongwindowMaxTime_, HFlongwindowMinTime_, HFshortwindowEthresh_, HFshortwindowMaxTime_, HFshortwindowMinTime_, minthreshold_, and samplesToAdd_.

 {
   // Specify parameters used in forming the HFDigiTime flag
   firstSample_        = HFDigiTimeParams.getParameter<int>("HFdigiflagFirstSample");
   samplesToAdd_       = HFDigiTimeParams.getParameter<int>("HFdigiflagSamplesToAdd");
   expectedPeak_       = HFDigiTimeParams.getParameter<int>("HFdigiflagExpectedPeak");
   minthreshold_       = HFDigiTimeParams.getParameter<double>("HFdigiflagMinEthreshold");
   coef_              = HFDigiTimeParams.getParameter<std::vector<double> >("HFdigiflagCoef");
 
   // Specify parameters used in forming HFInTimeWindow flag
   HFlongwindowMinTime_    = HFTimeInWindowParams.getParameter<std::vector<double> >("hflongMinWindowTime");
   HFlongwindowMaxTime_    = HFTimeInWindowParams.getParameter<std::vector<double> >("hflongMaxWindowTime");
   HFlongwindowEthresh_    = HFTimeInWindowParams.getParameter<double>("hflongEthresh");
   HFshortwindowMinTime_    = HFTimeInWindowParams.getParameter<std::vector<double> >("hfshortMinWindowTime");
   HFshortwindowMaxTime_    = HFTimeInWindowParams.getParameter<std::vector<double> >("hfshortMaxWindowTime");
   HFshortwindowEthresh_    = HFTimeInWindowParams.getParameter<double>("hfshortEthresh");
 }

HcalHFStatusBitFromDigis::~HcalHFStatusBitFromDigis ( )

Definition at line 54 of file HcalHFStatusBitFromDigis.cc.

54 {}

Member Function Documentation

void HcalHFStatusBitFromDigis::hfSetFlagFromDigi	(	HFRecHit &	hf,
		const HFDataFrame &	digi,
		const HcalCoder &	coder,
		const HcalCalibrations &	calib
	)

Definition at line 76 of file HcalHFStatusBitFromDigis.cc.

References HcalCoder::adc2fC(), HcalQIESample::capid(), coef_, qjetsadder_cfi::cutoff, HcalDetId::depth(), CaloRecHit::energy(), JetChargeProducer_cfi::exp, expectedPeak_, firstSample_, HcalCaloFlagLabels::HFDigiTime, HcalCaloFlagLabels::HFInTimeWindow, HFlongwindowEthresh_, HFlongwindowMaxTime_, HFlongwindowMinTime_, HFshortwindowEthresh_, HFshortwindowMaxTime_, HFshortwindowMinTime_, mps_fire::i, HFRecHit::id(), CastorTowerReco_cfi::maxtime, minthreshold_, CastorTowerReco_cfi::mintime, HcalCalibrations::pedestal(), HcalCalibrations::respcorrgain(), HFDataFrame::sample(), samplesToAdd_, CaloRecHit::setFlagField(), HFDataFrame::size(), CaloRecHit::time(), relativeConstraints::value, and geometryCSVtoXML::zz.

Referenced by HcalHitReconstructor::produce().

 {
   // The following 3 values are computed by Igor's algorithm 
   //only in the window [firstSample_, firstSample_ + samplesToAdd_), 
   //which may not be the same as the default reco window.
  
   double totalCharge=0;
   double peakCharge=0;
   double RecomputedEnergy=0;
 
   CaloSamples tool;
   coder.adc2fC(digi,tool);
 
   // Compute quantities needed for HFDigiTime, Fraction2TS FLAGS
   for (int i=0;i<digi.size();++i)
     {
       int capid=digi.sample(i).capid();
       double value = tool[i]-calib.pedestal(capid);
 
 
       // Sum all charge within flagging window, find charge in expected peak time slice
       if (i >=firstSample_ && i < firstSample_+samplesToAdd_)
     {
       totalCharge+=value;
       RecomputedEnergy+=value*calib.respcorrgain(capid);
       if (i==expectedPeak_) peakCharge=value;
     }
     } // for (int i=0;i<digi.size();++i)
 
   // FLAG:  HcalCaloLabels::HFDigiTime
   // Igor's algorithm:  compare charge in peak to total charge in window
   if (RecomputedEnergy>=minthreshold_)  // don't set noise flags for cells below a given threshold
     {
       // Calculate allowed minimum value of (TS4/TS3+4+5+6):
       double cutoff=0; // no arguments specified; no cutoff applied
       if (!coef_.empty())
     cutoff=coef_[0];
       // default cutoff takes the form:
       // cutoff = coef_[0] - exp(coef_[1]+coef_[2]*E+coef_[3]*E^2+...)
       double powRE=1;
       double expo_arg=0;
       for (unsigned int zz=1;zz<coef_.size();++zz)
     {
       expo_arg+=coef_[zz]*powRE;
       powRE*=RecomputedEnergy;
     }
       cutoff-=exp(expo_arg);
       
       if (peakCharge/totalCharge<cutoff)
     hf.setFlagField(1,HcalCaloFlagLabels::HFDigiTime);
     }
 
   // FLAG:  HcalCaloLabels:: HFInTimeWindow
   // Timing algorithm
   if (hf.id().depth()==1)
     {
       if (hf.energy()>=HFlongwindowEthresh_)
     {
       float mult=1./hf.energy();
       float enPow=1.;
       float mintime=0;
       float maxtime=0;
       for (unsigned int i=0;i<HFlongwindowMinTime_.size();++i)
         {
           mintime+=HFlongwindowMinTime_[i]*enPow;
           maxtime+=HFlongwindowMaxTime_[i]*enPow;
           enPow*=mult;
         }
       if (hf.time()<mintime || hf.time()>maxtime)
         hf.setFlagField(1,HcalCaloFlagLabels::HFInTimeWindow);
     }
     }
   else if (hf.id().depth()==2)
     {
       if (hf.energy()>=HFshortwindowEthresh_)
     {
       float mult=1./hf.energy();
       float enPow=1.;
       float mintime=0;
       float maxtime=0;
       for (unsigned int i=0;i<HFshortwindowMinTime_.size();++i)
         {
           mintime+=HFshortwindowMinTime_[i]*enPow;
           maxtime+=HFshortwindowMaxTime_[i]*enPow;
           enPow*=mult;
         }
       if (hf.time()<mintime || hf.time()>maxtime)
         hf.setFlagField(1,HcalCaloFlagLabels::HFInTimeWindow);
     }
     }
 
   return;
 }

void HcalHFStatusBitFromDigis::resetFlagTimeSamples	(	int	firstSample,
		int	samplesToAdd,
		int	expectedPeak
	)

Definition at line 67 of file HcalHFStatusBitFromDigis.cc.

References expectedPeak_, CastorSimpleReconstructor_cfi::firstSample, firstSample_, CastorSimpleReconstructor_cfi::samplesToAdd, and samplesToAdd_.

 {
   // This resets the time samples used in the HF flag.  These samples are not necessarily the same 
   // as the flags used by the energy reconstruction
   firstSample_  = firstSample;
   samplesToAdd_ = samplesToAdd;
   expectedPeak_ = expectedPeak;
 } // void HcalHFStatusBitFromDigis

void HcalHFStatusBitFromDigis::resetParamsFromDB	(	int	firstSample,
		int	samplesToAdd,
		int	expectedPeak,
		double	minthreshold,
		const std::vector< double > &	coef
	)

Definition at line 56 of file HcalHFStatusBitFromDigis.cc.

References coef_, expectedPeak_, CastorSimpleReconstructor_cfi::firstSample, firstSample_, minthreshold_, CastorSimpleReconstructor_cfi::samplesToAdd, and samplesToAdd_.

Referenced by HcalHitReconstructor::produce().

 {
   // Resets values based on values in database.
   firstSample_  = firstSample;
   samplesToAdd_ = samplesToAdd;
   expectedPeak_ = expectedPeak;
   minthreshold_ = minthreshold;
   coef_         = coef;
 }