#include <PulseShapeFitOOTPileupCorrection.h>

Public Member Functions
void	phase1Apply (const HBHEChannelInfo &channelData, float &reconstructedEnergy, float &reconstructedTime, bool &useTriple, float &chi2) const

	PulseShapeFitOOTPileupCorrection ()

void	resetPulseShapeTemplate (const HcalPulseShapes::Shape &ps, unsigned nSamples)

void	setPulseShapeTemplate (const HcalPulseShapes::Shape &ps, bool isHPD, unsigned nSamples, const HcalTimeSlew *hcalTimeSlewDelay)

void	setPUParams (bool iPedestalConstraint, bool iTimeConstraint, bool iAddPulseJitter, bool iApplyTimeSlew, double iTS4Min, const std::vector< double > &iTS4Max, double iPulseJitter, double iTimeMean, double iTimeSigHPD, double iTimeSigSiPM, double iPedMean, double iTMin, double iTMax, const std::vector< double > &its4Chi2, HcalTimeSlew::BiasSetting slewFlavor, int iFitTimes)

	~PulseShapeFitOOTPileupCorrection ()

Public Attributes
const HcalPulseShapes::Shape *	currentPulseShape_ = nullptr

const HcalTimeSlew *	hcalTimeSlewDelay_ = nullptr

double	tsDelay1GeV_ = 0

Private Member Functions
void	fit (int iFit, float &timevalfit, float &chargevalfit, float &pedvalfit, float &chi2, bool &fitStatus, double &iTSMax, const double &iTSTOTen, double *iEnArr, unsigned(&iBX)[3]) const

int	pulseShapeFit (const double energyArr, const double pedenArr, const double chargeArr, const double pedArr, const double gainArr, const double tsTOTen, std::vector< float > &fitParsVec, const double ADCnoise, unsigned int soi) const

Private Attributes
bool	addPulseJitter_

bool	applyTimeSlew_

double	chargeThreshold_

int	cntsetPulseShape

std::unique_ptr< ROOT::Math::Functor >	dpfunctor_

int	fitTimes_

PSFitter::HybridMinimizer *	hybridfitter

std::array< double, hcal::constants::maxSamples >	iniTimesArr

bool	isCurrentChannelHPD_

bool	pedestalConstraint_

double	pedMean_

double	pedSig_

std::unique_ptr< FitterFuncs::PulseShapeFunctor >	psfPtr_

double	pulseJitter_

HcalTimeSlew::BiasSetting	slewFlavor_

std::unique_ptr< ROOT::Math::Functor >	spfunctor_

bool	timeConstraint_

double	timeMean_

double	timeSig_

double	timeSigHPD_

double	timeSigSiPM_

std::unique_ptr< ROOT::Math::Functor >	tpfunctor_

double	ts4Chi2_

double	ts4Max_

double	ts4Min_

int	TSMax_

int	TSMin_

bool	unConstrainedFit_

std::vector< double >	vts4Chi2_

std::vector< double >	vts4Max_

Detailed Description

Definition at line 23 of file PulseShapeFitOOTPileupCorrection.h.

Constructor & Destructor Documentation

◆ PulseShapeFitOOTPileupCorrection()

PulseShapeFitOOTPileupCorrection::PulseShapeFitOOTPileupCorrection ( )

Definition at line 10 of file PulseShapeFitOOTPileupCorrection.cc.

References hybridfitter, iniTimesArr, and kMigrad.

     : cntsetPulseShape(0),
       psfPtr_(nullptr),
       spfunctor_(nullptr),
       dpfunctor_(nullptr),
       tpfunctor_(nullptr),
       TSMin_(0),
       TSMax_(0),
       vts4Chi2_(0),
       pedestalConstraint_(false),
       timeConstraint_(false),
       addPulseJitter_(false),
       applyTimeSlew_(false),
       ts4Min_(0),
       vts4Max_(0),
       pulseJitter_(0),
       timeMean_(0),
       timeSig_(0),
       pedMean_(0) {
   hybridfitter = new PSFitter::HybridMinimizer(ROOT::Minuit2::kMigrad);
   iniTimesArr = {{-100, -75, -50, -25, 0, 25, 50, 75, 100, 125}};
 }

◆ ~PulseShapeFitOOTPileupCorrection()

PulseShapeFitOOTPileupCorrection::~PulseShapeFitOOTPileupCorrection ( )

Definition at line 33 of file PulseShapeFitOOTPileupCorrection.cc.

References hybridfitter.

                                                                     {
   if (hybridfitter)
     delete hybridfitter;
 }

Member Function Documentation

◆ fit()

void PulseShapeFitOOTPileupCorrection::fit	(	int	iFit,
		float &	timevalfit,
		float &	chargevalfit,
		float &	pedvalfit,
		float &	chi2,
		bool &	fitStatus,
		double &	iTSMax,
		const double &	iTSTOTen,
		double *	iEnArr,
		unsigned(&)	iBX[3]
	)		const

private

Definition at line 196 of file PulseShapeFitOOTPileupCorrection.cc.

References funct::abs(), cms::cuda::assert(), hltPixelTracks_cff::chi2, dpfunctor_, fitTimes_, hybridfitter, mps_fire::i, iniTimesArr, createfilelist::int, kMigrad, dqmiodumpmetadata::n, pedMean_, pedSig_, mysort::results, PSFitter::HybridMinimizer::SetMinimizerType(), spfunctor_, timeMean_, timeSig_, tpfunctor_, TSMax_, TSMin_, and varNames.

Referenced by trackingPlots.Iteration::modules(), and pulseShapeFit().

                                                                      {
   int n = 3;
   if (iFit == 2)
     n = 5;  //Two   Pulse Fit
   if (iFit == 3)
     n = 7;                //Three Pulse Fit
                           //Step 1 Single Pulse fit
   float pedMax = iTSMax;  //=> max timeslice
   float tMin = TSMin_;    //Fitting Time Min
   float tMax = TSMax_;    //Fitting Time Max
   //Checks to make sure fitting happens
   if (pedMax < 1.)
     pedMax = 1.;
   // Set starting values andf step sizes for parameters
   double vstart[n];
   for (int i = 0; i < int((n - 1) / 2); i++) {
     vstart[2 * i + 0] = iniTimesArr[iBX[i]] + timeMean_;
     vstart[2 * i + 1] = iEnArr[iBX[i]];
   }
   vstart[n - 1] = pedMean_;
 
   double step[n];
   for (int i = 0; i < n; i++)
     step[i] = 0.1;
 
   if (iFit == 1)
     hybridfitter->SetFunction(*spfunctor_);
   if (iFit == 2)
     hybridfitter->SetFunction(*dpfunctor_);
   if (iFit == 3)
     hybridfitter->SetFunction(*tpfunctor_);
   hybridfitter->Clear();
   //Times and amplitudes
   for (int i = 0; i < int((n - 1) / 2); i++) {
     hybridfitter->SetLimitedVariable(0 + i * 2,
                                      varNames[2 * i + 0],
                                      vstart[0 + i * 2],
                                      step[0 + i * 2],
                                      iniTimesArr[iBX[i]] + tMin,
                                      iniTimesArr[iBX[i]] + tMax);
     hybridfitter->SetLimitedVariable(
         1 + i * 2, varNames[2 * i + 1], vstart[1 + i * 2], step[1 + i * 2], 0, 1.2 * iTSTOTEn);
     //Secret Option to fix the time
     if (timeSig_ < 0)
       hybridfitter->SetFixedVariable(0 + i * 2, varNames[2 * i + 0], vstart[0 + i * 2]);
   }
   //Pedestal
   if (vstart[n - 1] > std::abs(pedMax))
     vstart[n - 1] = pedMax;
   hybridfitter->SetLimitedVariable(n - 1, varNames[n - 1], vstart[n - 1], step[n - 1], -pedMax, pedMax);
   //Secret Option to fix the pedestal
   if (pedSig_ < 0)
     hybridfitter->SetFixedVariable(n - 1, varNames[n - 1], vstart[n - 1]);
   //a special number to label the initial condition
   chi2 = -1;
   //3 fits why?!
   const double *results = nullptr;
   for (int tries = 0; tries <= 3; ++tries) {
     if (fitTimes_ != 2 || tries != 1) {
       hybridfitter->SetMinimizerType(ROOT::Minuit2::kMigrad);
       fitStatus = hybridfitter->Minimize();
     }
     double chi2valfit = hybridfitter->MinValue();
     const double *newresults = hybridfitter->X();
     if (chi2 == -1 || chi2 > chi2valfit + 0.01) {
       results = newresults;
       chi2 = chi2valfit;
       if (tries == 0 && fitTimes_ == 1)
         break;
       if (tries == 1 && (fitTimes_ == 2 || fitTimes_ == 3))
         break;
       if (tries == 2 && fitTimes_ == 4)
         break;
       if (tries == 3 && fitTimes_ == 5)
         break;
       //Secret option to speed up the fit => perhaps we should drop this
       if (timeSig_ < 0 || pedSig_ < 0)
         break;
       if (tries == 0) {
         hybridfitter->SetMinimizerType(ROOT::Minuit2::kScan);
         fitStatus = hybridfitter->Minimize();
       } else if (tries == 1) {
         hybridfitter->SetStrategy(1);
       } else if (tries == 2) {
         hybridfitter->SetStrategy(2);
       }
     } else {
       break;
     }
   }
   assert(results);
 
   timevalfit = results[0];
   chargevalfit = results[1];
   pedvalfit = results[n - 1];
 }

◆ phase1Apply()

void PulseShapeFitOOTPileupCorrection::phase1Apply	(	const HBHEChannelInfo &	channelData,
		float &	reconstructedEnergy,
		float &	reconstructedTime,
		bool &	useTriple,
		float &	chi2
	)		const

Definition at line 302 of file PulseShapeFitOOTPileupCorrection.cc.

References ALCARECOTkAlJpsiMuMu_cff::charge, hltPixelTracks_cff::chi2, HcalDetId::depth(), HCALHighEnergyHPDFilter_cfi::energy, HBHEChannelInfo::fcByPE(), PedestalClient_cfi::gain, HBHEChannelInfo::hasTimeInfo(), HBHEChannelInfo::id(), hcal::constants::maxSamples, HBHEChannelInfo::nSamples(), psfPtr_, pulseShapeFit(), HBHEChannelInfo::soi(), mathSSE::sqrt(), ts4Chi2_, ts4Max_, ts4Min_, HBHEChannelInfo::tsDFcPerADC(), HBHEChannelInfo::tsGain(), HBHEChannelInfo::tsPedestal(), HBHEChannelInfo::tsPedestalWidth(), HBHEChannelInfo::tsRawCharge(), vts4Chi2_, and vts4Max_.

Referenced by SimpleHBHEPhase1Algo::reconstruct().

                                                                       {
   psfPtr_->setDefaultcntNANinfit();
 
   const unsigned cssize = channelData.nSamples();
   const unsigned int soi = channelData.soi();
 
   // initialize arrays to be zero
   double chargeArr[hcal::constants::maxSamples] = {}, pedArr[hcal::constants::maxSamples] = {},
          gainArr[hcal::constants::maxSamples] = {};
   double energyArr[hcal::constants::maxSamples] = {}, pedenArr[hcal::constants::maxSamples] = {};
   double noiseADCArr[hcal::constants::maxSamples] = {};
   double noiseArrSq[hcal::constants::maxSamples] = {};
   double noisePHArr[hcal::constants::maxSamples] = {};
   double tstrig = 0;   // in fC
   double tsTOTen = 0;  // in GeV
 
   // go over the time slices
   for (unsigned int ip = 0; ip < cssize; ++ip) {
     if (ip >= (unsigned)hcal::constants::maxSamples)
       continue;  // Too many samples than what we wanna fit (10 is enough...) -> skip them
 
     //      const int capid = channelData.capid(); // not needed
     double charge = channelData.tsRawCharge(ip);
     double ped = channelData.tsPedestal(ip);
     double gain = channelData.tsGain(ip);
 
     double energy = charge * gain;
     double peden = ped * gain;
 
     chargeArr[ip] = charge;
     pedArr[ip] = ped;
     gainArr[ip] = gain;
     energyArr[ip] = energy;
     pedenArr[ip] = peden;
 
     // quantization noise from the ADC (QIE8 or QIE10/11)
     noiseADCArr[ip] = (1. / sqrt(12)) * channelData.tsDFcPerADC(ip);
 
     // Photo statistics uncertainties
     //      sigmaFC/FC = 1/sqrt(Ne);
     // Note2. (from kPedro): the output number of photoelectrons after smearing is treated very differently for SiPMs: *each* pe is assigned a different time based on a random generation from the Y11 pulse plus the SimHit time. In HPDs, the overall pulse is shaped all at once using just the SimHit time.
 
     noisePHArr[ip] = 0;
     if ((charge - ped) > channelData.tsPedestalWidth(ip)) {
       noisePHArr[ip] = sqrt((charge - ped) * channelData.fcByPE());
     }
 
     // sum all in quadrature
     noiseArrSq[ip] = noiseADCArr[ip] * noiseADCArr[ip] +
                      channelData.tsPedestalWidth(ip) * channelData.tsPedestalWidth(ip) +
                      noisePHArr[ip] * noisePHArr[ip];
 
     tsTOTen += energy - peden;
     if (ip == soi || ip == soi + 1) {
       tstrig += charge - ped;
     }
   }
 
   double averagePedSig2GeV =
       0.25 *
       (channelData.tsPedestalWidth(0) * channelData.tsPedestalWidth(0) * channelData.tsGain(0) * channelData.tsGain(0) +
        channelData.tsPedestalWidth(1) * channelData.tsPedestalWidth(1) * channelData.tsGain(1) * channelData.tsGain(1) +
        channelData.tsPedestalWidth(2) * channelData.tsPedestalWidth(2) * channelData.tsGain(2) * channelData.tsGain(2) +
        channelData.tsPedestalWidth(3) * channelData.tsPedestalWidth(3) * channelData.tsGain(3) * channelData.tsGain(3));
 
   // redefine the invertpedSig2
   psfPtr_->setinvertpedSig2(1. / (averagePedSig2GeV));
 
   if (channelData.hasTimeInfo()) {
     ts4Chi2_ = vts4Chi2_[1];
     if (channelData.id().depth() == 1)
       ts4Max_ = vts4Max_[1];
     else
       ts4Max_ = vts4Max_[2];
 
   } else {
     ts4Max_ = vts4Max_[0];
     ts4Chi2_ = vts4Chi2_[0];
   }
 
   std::vector<float> fitParsVec;
   if (tstrig >= ts4Min_ && tsTOTen > 0.) {  //Two sigma from 0
     pulseShapeFit(energyArr, pedenArr, chargeArr, pedArr, gainArr, tsTOTen, fitParsVec, noiseArrSq, channelData.soi());
   } else {
     fitParsVec.clear();
     fitParsVec.push_back(0.);     //charge
     fitParsVec.push_back(-9999);  // time
     fitParsVec.push_back(0.);     // ped
     fitParsVec.push_back(-9999);  // chi2
     fitParsVec.push_back(false);  // triple
   }
 
   reconstructedEnergy = fitParsVec[0];
   reconstructedTime = fitParsVec[1];
   chi2 = fitParsVec[3];
   useTriple = fitParsVec[4];
 }

◆ pulseShapeFit()

int PulseShapeFitOOTPileupCorrection::pulseShapeFit	(	const double *	energyArr,
		const double *	pedenArr,
		const double *	chargeArr,
		const double *	pedArr,
		const double *	gainArr,
		const double	tsTOTen,
		std::vector< float > &	fitParsVec,
		const double *	ADCnoise,
		unsigned int	soi
	)		const

private

Definition at line 112 of file PulseShapeFitOOTPileupCorrection.cc.

References funct::abs(), applyTimeSlew_, L1TStage2uGTEmulatorClient_cff::BX, hltPixelTracks_cff::chi2, HcalTimeSlew::delay(), fit(), hcalTimeSlewDelay_, mps_fire::i, createfilelist::int, hcal::constants::maxSamples, hcal::constants::nsPerBX, psfPtr_, hcal::constants::shiftTS, slewFlavor_, mathSSE::sqrt(), ts4Chi2_, ts4Max_, and tsDelay1GeV_.

Referenced by phase1Apply().

                                                                             {
   double tsMAX = 0;
   double tmpx[hcal::constants::maxSamples], tmpy[hcal::constants::maxSamples], tmperry[hcal::constants::maxSamples],
       tmperry2[hcal::constants::maxSamples], tmpslew[hcal::constants::maxSamples];
   double tstrig = 0;  // in fC
   for (unsigned int i = 0; i < hcal::constants::maxSamples; ++i) {
     tmpx[i] = i;
     tmpy[i] = energyArr[i] - pedenArr[i];
     //Add Time Slew !!! does this need to be pedestal subtracted
     tmpslew[i] = 0;
     if (applyTimeSlew_) {
       if (chargeArr[i] <= 1.0)
         tmpslew[i] = tsDelay1GeV_;
       else
         tmpslew[i] = hcalTimeSlewDelay_->delay(chargeArr[i], slewFlavor_);
     }
 
     // add the noise components
     tmperry2[i] = noiseArrSq[i];
 
     //Propagate it through
     tmperry2[i] *= (gainArr[i] * gainArr[i]);  //Convert from fC to GeV
     tmperry[i] = sqrt(tmperry2[i]);
 
     if (std::abs(energyArr[i]) > tsMAX)
       tsMAX = std::abs(tmpy[i]);
     if (i == soi || i == (soi + 1)) {
       tstrig += chargeArr[i] - pedArr[i];
     }
   }
   psfPtr_->setpsFitx(tmpx);
   psfPtr_->setpsFity(tmpy);
   psfPtr_->setpsFiterry(tmperry);
   psfPtr_->setpsFiterry2(tmperry2);
   psfPtr_->setpsFitslew(tmpslew);
 
   //Fit 1 single pulse
   float timevalfit = 0;
   float chargevalfit = 0;
   float pedvalfit = 0;
   float chi2 = 999;  //cannot be zero
   bool fitStatus = false;
   bool useTriple = false;
 
   unsigned BX[3] = {soi, soi + 1, soi - 1};
   if (ts4Chi2_ != 0)
     fit(1, timevalfit, chargevalfit, pedvalfit, chi2, fitStatus, tsMAX, tsTOTen, tmpy, BX);
   // Based on the pulse shape ( 2. likely gives the same performance )
   if (tmpy[soi - 2] > 3. * tmpy[soi - 1])
     BX[2] = soi - 2;
   // Only do three-pulse fit when tstrig < ts4Max_, otherwise one-pulse fit is used (above)
   if (chi2 > ts4Chi2_ && tstrig < ts4Max_) {  //fails chi2 cut goes straight to 3 Pulse fit
     fit(3, timevalfit, chargevalfit, pedvalfit, chi2, fitStatus, tsMAX, tsTOTen, tmpy, BX);
     useTriple = true;
   }
 
   timevalfit -= (int(soi) - hcal::constants::shiftTS) * hcal::constants::nsPerBX;
 
   /*
    if(chi2 > ts345Chi2_)   { //fails do two pulse chi2 for TS5 
      BX[1] = 5;
      fit(3,timevalfit,chargevalfit,pedvalfit,chi2,fitStatus,tsMAX,tsTOTen,BX);
    }
    */
   //Fix back the timeslew
   //if(applyTimeSlew_) timevalfit+=HcalTimeSlew::delay(std::max(1.0,chargeArr[4]),slewFlavor_);
   int outfitStatus = (fitStatus ? 1 : 0);
   fitParsVec.clear();
   fitParsVec.push_back(chargevalfit);
   fitParsVec.push_back(timevalfit);
   fitParsVec.push_back(pedvalfit);
   fitParsVec.push_back(chi2);
   fitParsVec.push_back(useTriple);
   return outfitStatus;
 }

◆ resetPulseShapeTemplate()

void PulseShapeFitOOTPileupCorrection::resetPulseShapeTemplate	(	const HcalPulseShapes::Shape &	ps,
		unsigned	nSamples
	)

Definition at line 98 of file PulseShapeFitOOTPileupCorrection.cc.

References addPulseJitter_, cntsetPulseShape, FitterFuncs::PulseShapeFunctor::doublePulseShapeFunc(), dpfunctor_, PresampleTask_cfi::nSamples, pedestalConstraint_, pedMean_, psfPtr_, pulseJitter_, FitterFuncs::PulseShapeFunctor::singlePulseShapeFunc(), spfunctor_, timeConstraint_, timeMean_, tpfunctor_, and FitterFuncs::PulseShapeFunctor::triplePulseShapeFunc().

Referenced by setPulseShapeTemplate().

                                                                                                                 {
   ++cntsetPulseShape;
   psfPtr_ = std::make_unique<FitterFuncs::PulseShapeFunctor>(
       ps, pedestalConstraint_, timeConstraint_, addPulseJitter_, pulseJitter_, timeMean_, pedMean_, nSamples);
   spfunctor_ =
       std::make_unique<ROOT::Math::Functor>(psfPtr_.get(), &FitterFuncs::PulseShapeFunctor::singlePulseShapeFunc, 3);
   dpfunctor_ =
       std::make_unique<ROOT::Math::Functor>(psfPtr_.get(), &FitterFuncs::PulseShapeFunctor::doublePulseShapeFunc, 5);
   tpfunctor_ =
       std::make_unique<ROOT::Math::Functor>(psfPtr_.get(), &FitterFuncs::PulseShapeFunctor::triplePulseShapeFunc, 7);
 }

◆ setPulseShapeTemplate()

void PulseShapeFitOOTPileupCorrection::setPulseShapeTemplate	(	const HcalPulseShapes::Shape &	ps,
		bool	isHPD,
		unsigned	nSamples,
		const HcalTimeSlew *	hcalTimeSlewDelay
	)

Definition at line 75 of file PulseShapeFitOOTPileupCorrection.cc.

References currentPulseShape_, HcalTimeSlew::delay(), hcalTimeSlewDelay_, isCurrentChannelHPD_, PresampleTask_cfi::nSamples, psfPtr_, resetPulseShapeTemplate(), slewFlavor_, timeSigHPD_, timeSigSiPM_, and tsDelay1GeV_.

                                                                                                     {
   // initialize for every different channel types (HPD vs SiPM)
 
   if (!(&ps == currentPulseShape_ && isHPD == isCurrentChannelHPD_)) {
     resetPulseShapeTemplate(ps, nSamples);
 
     // redefine the inverttimeSig2
     if (!isHPD)
       psfPtr_->setinverttimeSig2(1. / (timeSigSiPM_ * timeSigSiPM_));
     else
       psfPtr_->setinverttimeSig2(1. / (timeSigHPD_ * timeSigHPD_));
 
     currentPulseShape_ = &ps;
     isCurrentChannelHPD_ = isHPD;
 
     hcalTimeSlewDelay_ = hcalTimeSlewDelay;
     tsDelay1GeV_ = hcalTimeSlewDelay->delay(1.0, slewFlavor_);
   }
 }

◆ setPUParams()

void PulseShapeFitOOTPileupCorrection::setPUParams	(	bool	iPedestalConstraint,
		bool	iTimeConstraint,
		bool	iAddPulseJitter,
		bool	iApplyTimeSlew,
		double	iTS4Min,
		const std::vector< double > &	iTS4Max,
		double	iPulseJitter,
		double	iTimeMean,
		double	iTimeSigHPD,
		double	iTimeSigSiPM,
		double	iPedMean,
		double	iTMin,
		double	iTMax,
		const std::vector< double > &	its4Chi2,
		HcalTimeSlew::BiasSetting	slewFlavor,
		int	iFitTimes
	)

Definition at line 38 of file PulseShapeFitOOTPileupCorrection.cc.

References addPulseJitter_, applyTimeSlew_, fitTimes_, pedestalConstraint_, pedMean_, pulseJitter_, slewFlavor_, timeConstraint_, timeMean_, timeSigHPD_, timeSigSiPM_, ts4Min_, TSMax_, TSMin_, vts4Chi2_, and vts4Max_.

                                                                   {
   TSMin_ = iTMin;
   TSMax_ = iTMax;
   //  ts4Chi2_   = its4Chi2;
   vts4Chi2_ = its4Chi2;
   pedestalConstraint_ = iPedestalConstraint;
   timeConstraint_ = iTimeConstraint;
   addPulseJitter_ = iAddPulseJitter;
   applyTimeSlew_ = iApplyTimeSlew;
   ts4Min_ = iTS4Min;
   //  ts4Max_            = iTS4Max;
   vts4Max_ = iTS4Max;
   pulseJitter_ = iPulseJitter * iPulseJitter;
   timeMean_ = iTimeMean;
   //  timeSig_            = iTimeSig;
   timeSigHPD_ = iTimeSigHPD;
   timeSigSiPM_ = iTimeSigSiPM;
   pedMean_ = iPedMean;
   slewFlavor_ = slewFlavor;
   fitTimes_ = iFitTimes;
 }