#include <HcalHF_PETalgorithm.h>

Public Member Functions
double	bit ()
double	CalcThreshold (double abs_energy, std::vector< double > params)
std::vector< double >	GetLong_Energy_Thresh ()
std::vector< double >	GetLong_ET_Thresh ()
std::vector< double >	GetLong_R ()
std::vector< double >	GetShort_Energy_Thresh ()
std::vector< double >	GetShort_ET_Thresh ()
std::vector< double >	GetShort_R ()
	HcalHF_PETalgorithm ()
	HcalHF_PETalgorithm (std::vector< double > short_R, std::vector< double > short_Energy, std::vector< double > short_ET, std::vector< double > long_R, std::vector< double > long_Energy, std::vector< double > long_ET, int flagsToSkip, std::vector< double > short_R_29, std::vector< double > long_R_29)
void	HFSetFlagFromPET (HFRecHit &hf, HFRecHitCollection &rec, HcalChannelQuality myqual, const HcalSeverityLevelComputer mySeverity)
void	SetLong_Energy_Thresh (std::vector< double > x)
void	SetLong_ET_Thresh (std::vector< double > x)
void	SetLong_R (std::vector< double > x)
void	SetShort_Energy_Thresh (std::vector< double > x)
void	SetShort_ET_Thresh (std::vector< double > x)
void	SetShort_R (std::vector< double > x)
	~HcalHF_PETalgorithm ()
Private Attributes
int	flagsToSkip_
std::vector< double >	long_Energy_Thresh
std::vector< double >	long_ET_Thresh
std::vector< double >	long_R
std::vector< double >	long_R_29
std::vector< double >	short_Energy_Thresh
std::vector< double >	short_ET_Thresh
std::vector< double >	short_R
std::vector< double >	short_R_29

Detailed Description

Class evaluates the ratio |(L-S)/(L+S)| for a given cell, and flags the cell if the threshold exceeds a given maximum value R(Energy). Each cell must also pass ieta-dependent energy and ET cuts to be considered for flagging.

Date:: 2010/06/30 23:58:35

Revision:: 1.2

Author:: J. Temple and D. Ferencek

Definition at line 24 of file HcalHF_PETalgorithm.h.

Constructor & Destructor Documentation

HcalHF_PETalgorithm::HcalHF_PETalgorithm ( )

Constructors

Definition at line 14 of file HcalHF_PETalgorithm.cc.

{
  // no params given; revert to old 'algo 1' fixed settings
  short_R.clear();
  short_R.push_back(0.995);
  short_R_29.clear();
  short_R_29.push_back(0.995);
  short_Energy_Thresh.clear();
  short_Energy_Thresh.push_back(50);
  short_ET_Thresh.clear();
  short_ET_Thresh.push_back(0);
  
  long_R.clear();
  long_R.push_back(0.995);
  long_R_29.clear();
  long_R_29.push_back(0.995);
  long_Energy_Thresh.clear();
  long_Energy_Thresh.push_back(50);
  long_ET_Thresh.clear();
  long_ET_Thresh.push_back(0);
  flagsToSkip_=0;
}

HcalHF_PETalgorithm::HcalHF_PETalgorithm	(	std::vector< double >	short_R,
		std::vector< double >	short_Energy,
		std::vector< double >	short_ET,
		std::vector< double >	long_R,
		std::vector< double >	long_Energy,
		std::vector< double >	long_ET,
		int	flagsToSkip,
		std::vector< double >	short_R_29,
		std::vector< double >	long_R_29
	)

Definition at line 37 of file HcalHF_PETalgorithm.cc.

{
  // R is parameterized depending on the energy of the cells, so just store the parameters here
  short_R    = shortR;
  long_R     = longR;
  short_R_29 = shortR29;
  long_R_29  = longR29;

  // Energy and ET cuts are ieta-dependent, and only need to be calculated once!
  short_Energy_Thresh.clear();
  short_ET_Thresh.clear();
  long_Energy_Thresh.clear();
  long_ET_Thresh.clear();

  //separate short, long cuts provided for each ieta 
  short_Energy_Thresh=shortEnergyParams;
  short_ET_Thresh=shortETParams;
  long_Energy_Thresh=longEnergyParams;
  long_ET_Thresh=longETParams;

  flagsToSkip_=flagsToSkip;
}

HcalHF_PETalgorithm::~HcalHF_PETalgorithm ( )

Definition at line 68 of file HcalHF_PETalgorithm.cc.

{}

Member Function Documentation

double HcalHF_PETalgorithm::bit ( ) [inline]

Definition at line 63 of file HcalHF_PETalgorithm.h.

References HcalCaloFlagLabels::HFLongShort.

{return HcalCaloFlagLabels::HFLongShort;}

double HcalHF_PETalgorithm::CalcThreshold	(	double	abs_energy,
		std::vector< double >	params
	)

Definition at line 156 of file HcalHF_PETalgorithm.cc.

References i, funct::pow(), and crabWrap::threshold.

{
  /* CalcEnergyThreshold calculates the polynomial [0]+[1]*x + [2]*x^2 + ....,
     where x is an integer provided by the first argument (int double abs_x),
     and [0],[1],[2] is a vector of doubles provided by the second (std::vector<double> params).
     The output of the polynomial calculation (threshold) is returned by the function.
  */
  double threshold=0;
  for (std::vector<double>::size_type i=0;i<params.size();++i)
    {
      threshold+=params[i]*pow(abs_x, (int)i);
    }
  return threshold;
} //double HcalHF_PETalgorithm::CalcThreshold(double abs_x,std::vector<double> params)

std::vector<double> HcalHF_PETalgorithm::GetLong_Energy_Thresh ( ) [inline]

Definition at line 61 of file HcalHF_PETalgorithm.h.

References long_Energy_Thresh.

{return long_Energy_Thresh;}

std::vector<double> HcalHF_PETalgorithm::GetLong_ET_Thresh ( ) [inline]

Definition at line 60 of file HcalHF_PETalgorithm.h.

References long_ET_Thresh.

{return long_ET_Thresh;}

std::vector<double> HcalHF_PETalgorithm::GetLong_R ( ) [inline]

Definition at line 59 of file HcalHF_PETalgorithm.h.

References long_R.

{return long_R;}

std::vector<double> HcalHF_PETalgorithm::GetShort_Energy_Thresh ( ) [inline]

Definition at line 58 of file HcalHF_PETalgorithm.h.

References short_Energy_Thresh.

{return short_Energy_Thresh;}

std::vector<double> HcalHF_PETalgorithm::GetShort_ET_Thresh ( ) [inline]

Definition at line 57 of file HcalHF_PETalgorithm.h.

References short_ET_Thresh.

{return short_ET_Thresh;}

std::vector<double> HcalHF_PETalgorithm::GetShort_R ( ) [inline]

Definition at line 56 of file HcalHF_PETalgorithm.h.

References short_R.

{return short_R;}

void HcalHF_PETalgorithm::HFSetFlagFromPET	(	HFRecHit &	hf,
		HFRecHitCollection &	rec,
		HcalChannelQuality *	myqual,
		const HcalSeverityLevelComputer *	mySeverity
	)

Definition at line 72 of file HcalHF_PETalgorithm.cc.

References abs, HcalDetId::depth(), HcalSeverityLevelComputer::dropChannel(), edm::SortedCollection< T, SORT >::end(), CaloRecHit::energy(), relval_parameters_module::energy, ET, edm::SortedCollection< T, SORT >::find(), HcalChannelStatus::getValue(), HcalCondObjectContainer< Item >::getValues(), HcalForward, HcalCaloFlagLabels::HFLongShort, HcalCaloFlagLabels::HFPET, HFRecHit::id(), HcalDetId::ieta(), HcalDetId::iphi(), DetId::rawId(), CaloRecHit::setFlagField(), and theHFEtaBounds.

Referenced by HcalHitReconstructor::produce().

{
  /*  Set the HFLongShort flag by comparing the ratio |L-S|/|L+S|.  Channels must first pass energy and ET cuts, and channels whose partners are known to be dead are skipped, since those channels can never satisfy the ratio cut.  */

  int ieta=hf.id().ieta(); // get coordinates of rechit being checked
  int depth=hf.id().depth();
  int iphi=hf.id().iphi();
  double fEta = 0.5*(theHFEtaBounds[abs(ieta)-29] + theHFEtaBounds[abs(ieta)-28]); // calculate eta as average of eta values at ieta boundaries
  double energy=hf.energy();
  double ET = energy/fabs(cosh(fEta));

  // Step 1:  Check energy and ET cuts
  double ETthresh=0, Energythresh=0; // set ET, energy thresholds

  if (depth==1)  // set thresholds for long fibers
    {
      Energythresh = long_Energy_Thresh[abs(ieta)-29];
      ETthresh     = long_ET_Thresh[abs(ieta)-29];
    }
  else if (depth==2) // short fibers
    {
      Energythresh = short_Energy_Thresh[abs(ieta)-29];
      ETthresh     = short_ET_Thresh[abs(ieta)-29];
    }
  
  if (energy<Energythresh || ET < ETthresh)
    {
      hf.setFlagField(0, HcalCaloFlagLabels::HFLongShort); // shouldn't be necessary, but set bit to 0 just to be sure
      hf.setFlagField(0, HcalCaloFlagLabels::HFPET);
      return;
    }

  // Step 2:  Get partner info, check if partner is excluded from rechits already
  HcalDetId partner(HcalForward, ieta, iphi, 3-depth); //  if depth=1, 3-depth=2, and vice versa
  DetId detpartner=DetId(partner);
  const HcalChannelStatus* partnerstatus=myqual->getValues(detpartner.rawId());

  // Don't set the bit if the partner has been dropped from the rechit collection ('dead' or 'off')
  if (mySeverity->dropChannel(partnerstatus->getValue() ) )
    {
      hf.setFlagField(0, HcalCaloFlagLabels::HFLongShort); // shouldn't be necessary, but set bit to 0 just to be sure
      hf.setFlagField(0, HcalCaloFlagLabels::HFPET);
      return;
    }

  // Step 3:  Compute ratio
  double Ratio=1;
  HFRecHitCollection::const_iterator part=rec.find(partner);
  if (part!=rec.end())
    {
      if ((flagsToSkip_&part->flags())==0)
        Ratio=(energy-part->energy())/(energy+part->energy());
    }

  double RatioThresh=0;
  // Allow for the ratio cut to be parameterized in terms of energy
  if (abs(ieta)==29)
    {
      if (depth==1) RatioThresh=CalcThreshold(energy,long_R_29);
      else if (depth==2) RatioThresh=CalcThreshold(energy,short_R_29);
    }
  else
    {
      if (depth==1) RatioThresh=CalcThreshold(energy,long_R);
      else if (depth==2) RatioThresh=CalcThreshold(energy,short_R);
    }
  if (Ratio<=RatioThresh)
    {
      hf.setFlagField(0, HcalCaloFlagLabels::HFLongShort); // shouldn't be necessary, but set bit to 0 just to be sure
      hf.setFlagField(0, HcalCaloFlagLabels::HFPET);
      return;
    }
  // Made it this far -- ratio is > threshold, and cell should be flagged!
  // 'HFLongShort' is overall topological flag, and 'HFPET' is the flag for this
  // specific test
  hf.setFlagField(1, HcalCaloFlagLabels::HFLongShort);
  hf.setFlagField(1, HcalCaloFlagLabels::HFPET);
}//void HcalHF_PETalgorithm::HFSetFlagFromPET