HcalSimpleRecAlgoImpl Namespace Reference

Functions
template<class Digi , class RecHit >
RecHit	reco (const Digi &digi, const HcalCoder &coder, const HcalCalibrations &calibs, const int ifirst, const int n, const bool slewCorrect, const bool pulseCorrect, const HcalPulseContainmentCorrection *corr, const HcalTimeSlew::BiasSetting slewFlavor, const int runnum, const bool useLeak, const AbsOOTPileupCorrection *pileupCorrection, const BunchXParameter *bxInfo, const unsigned lenInfo, const int puCorrMethod, const HcalTimeSlew *hcalTimeSlew_delay_)
template<class Digi >
float	recoHFTime (const Digi &digi, const int maxI, const double amp_fC, const bool slewCorrect, double maxA, float t0, float t2)
template<class Digi >
void	removePileup (const Digi &digi, const HcalCoder &coder, const HcalCalibrations &calibs, const int ifirst, const int n, const bool pulseCorrect, const HcalPulseContainmentCorrection *corr, const AbsOOTPileupCorrection *pileupCorrection, const BunchXParameter *bxInfo, const unsigned lenInfo, double *p_maxA, double *p_ampl, double *p_uncorr_ampl, double *p_fc_ampl, int *p_nRead, int *p_maxI, bool *leakCorrApplied, float *p_t0, float *p_t2)

Function Documentation

reco()

template<class Digi , class RecHit >

RecHit HcalSimpleRecAlgoImpl::reco ( const Digi &  digi, const HcalCoder &  coder, const HcalCalibrations &  calibs, const int  ifirst, const int  n, const bool  slewCorrect, const bool  pulseCorrect, const HcalPulseContainmentCorrection *  corr, const HcalTimeSlew::BiasSetting  slewFlavor, const int  runnum, const bool  useLeak, const AbsOOTPileupCorrection *  pileupCorrection, const BunchXParameter *  bxInfo, const unsigned  lenInfo, const int  puCorrMethod, const HcalTimeSlew *  hcalTimeSlew_delay_  )

inline

Definition at line 253 of file HcalSimpleRecAlgo.cc.

                                                              {
    double fc_ampl = 0, ampl = 0, uncorr_ampl = 0, m3_ampl = 0, maxA = -1.e300;
    int nRead = 0, maxI = -1;
    bool leakCorrApplied = false;
    float t0 = 0, t2 = 0;
    float time = -9999;
 
    // Disable method 1 inside the removePileup function this way!
    // Some code in removePileup does NOT do pileup correction & to make sure maximum share of code
    const AbsOOTPileupCorrection* inputAbsOOTpuCorr = (puCorrMethod == 1 ? pileupCorrection : nullptr);
 
    removePileup(digi,
                 coder,
                 calibs,
                 ifirst,
                 n,
                 pulseCorrect,
                 corr,
                 inputAbsOOTpuCorr,
                 bxInfo,
                 lenInfo,
                 &maxA,
                 &ampl,
                 &uncorr_ampl,
                 &fc_ampl,
                 &nRead,
                 &maxI,
                 &leakCorrApplied,
                 &t0,
                 &t2);
 
    if (maxI > 0 && maxI < (nRead - 1)) {
      // Handle negative excursions by moving "zero":
      float minA = t0;
      if (maxA < minA)
        minA = maxA;
      if (t2 < minA)
        minA = t2;
      if (minA < 0) {
        maxA -= minA;
        t0 -= minA;
        t2 -= minA;
      }  // positivizes all samples
 
      float wpksamp = (t0 + maxA + t2);
      if (wpksamp != 0)
        wpksamp = (maxA + 2.0 * t2) / wpksamp;
      time = (maxI - digi.presamples()) * 25.0 + timeshift_ns_hbheho(wpksamp);
 
      if (slewCorrect)
        time -= hcalTimeSlew_delay_->delay(std::max(1.0, fc_ampl), slewFlavor);
 
      time = time - calibs.timecorr();  // time calibration
    }
 
    // Correction for a leak to pre-sample
    if (useLeak && !leakCorrApplied) {
      uncorr_ampl *= leakCorr(uncorr_ampl);
      if (puCorrMethod < 2)
        ampl *= leakCorr(ampl);
    }
 
    RecHit rh(digi.id(), ampl, time);
    setRawEnergy(rh, static_cast<float>(uncorr_ampl));
    setAuxEnergy(rh, static_cast<float>(m3_ampl));
    return rh;
  }

References alignCSCRings::corr, HcalTimeSlew::delay(), leakCorr(), SiStripPI::max, findQualityFiles::maxI, dqmiodumpmetadata::n, removePileup(), setAuxEnergy(), setRawEnergy(), FrontierCondition_GT_autoExpress_cfi::t0, RandomServiceHelper::t2, ntuplemaker::time, HcalCalibrations::timecorr(), and timeshift_ns_hbheho().

recoHFTime()

template<class Digi >

float HcalSimpleRecAlgoImpl::recoHFTime ( const Digi &  digi, const int  maxI, const double  amp_fC, const bool  slewCorrect, double  maxA, float  t0, float  t2  )

inline

Definition at line 73 of file HcalSimpleRecAlgo.cc.

                                                                                                                      {
    // Handle negative excursions by moving "zero":
    float zerocorr = std::min(t0, t2);
    if (zerocorr < 0.f) {
      t0 -= zerocorr;
      t2 -= zerocorr;
      maxA -= zerocorr;
    }
 
    // pair the peak with the larger of the two neighboring time samples
    float wpksamp = 0.f;
    if (t0 > t2) {
      wpksamp = t0 + maxA;
      if (wpksamp != 0.f)
        wpksamp = maxA / wpksamp;
    } else {
      wpksamp = maxA + t2;
      if (wpksamp != 0.f)
        wpksamp = 1. + (t2 / wpksamp);
    }
 
    float time = (maxI - digi.presamples()) * 25.0 + timeshift_ns_hf(wpksamp);
 
    if (slewCorrect && amp_fC > 0.0) {
      // -5.12327 - put in calibs.timecorr()
      double tslew = exp(0.337681 - 5.94689e-4 * amp_fC) + exp(2.44628 - 1.34888e-2 * amp_fC);
      time -= (float)tslew;
    }
 
    return time;
  }

References MillePedeFileConverter_cfg::e, JetChargeProducer_cfi::exp, f, dqmMemoryStats::float, findQualityFiles::maxI, min(), FrontierCondition_GT_autoExpress_cfi::t0, RandomServiceHelper::t2, ntuplemaker::time, and timeshift_ns_hf().

Referenced by HcalSimpleRecAlgo::reconstruct(), and HcalSimpleRecAlgo::reconstructQIE10().

removePileup()

template<class Digi >

void HcalSimpleRecAlgoImpl::removePileup ( const Digi &  digi, const HcalCoder &  coder, const HcalCalibrations &  calibs, const int  ifirst, const int  n, const bool  pulseCorrect, const HcalPulseContainmentCorrection *  corr, const AbsOOTPileupCorrection *  pileupCorrection, const BunchXParameter *  bxInfo, const unsigned  lenInfo, double *  p_maxA, double *  p_ampl, double *  p_uncorr_ampl, double *  p_fc_ampl, int *  p_nRead, int *  p_maxI, bool *  leakCorrApplied, float *  p_t0, float *  p_t2  )

inline

Definition at line 107 of file HcalSimpleRecAlgo.cc.

                                        {
    CaloSamples cs;
    coder.adc2fC(digi, cs);
    const int nRead = cs.size();
    const int iStop = std::min(nRead, n + ifirst);
 
    // Signal energy will be calculated both with
    // and without OOT pileup corrections. Try to
    // arrange the calculations so that we do not
    // repeat them.
    double uncorrectedEnergy[CaloSamples::MAXSAMPLES]{}, buf[CaloSamples::MAXSAMPLES]{};
    double* correctedEnergy = nullptr;
    double fc_ampl = 0.0, corr_fc_ampl = 0.0;
    bool pulseShapeCorrApplied = false, readjustTiming = false;
    *leakCorrApplied = false;
 
    if (pileupCorrection) {
      correctedEnergy = &buf[0];
 
      double correctionInput[CaloSamples::MAXSAMPLES]{};
      double gains[CaloSamples::MAXSAMPLES]{};
 
      for (int i = 0; i < nRead; ++i) {
        const int capid = digi[i].capid();
        correctionInput[i] = cs[i] - calibs.pedestal(capid);
        gains[i] = calibs.respcorrgain(capid);
      }
 
      for (int i = ifirst; i < iStop; ++i)
        fc_ampl += correctionInput[i];
 
      const bool useGain = pileupCorrection->inputIsEnergy();
      for (int i = 0; i < nRead; ++i) {
        uncorrectedEnergy[i] = correctionInput[i] * gains[i];
        if (useGain)
          correctionInput[i] = uncorrectedEnergy[i];
      }
 
      pileupCorrection->apply(digi.id(),
                              correctionInput,
                              nRead,
                              bxInfo,
                              lenInfo,
                              ifirst,
                              n,
                              correctedEnergy,
                              CaloSamples::MAXSAMPLES,
                              &pulseShapeCorrApplied,
                              leakCorrApplied,
                              &readjustTiming);
      if (useGain) {
        // Gain factors have been already applied.
        // Divide by them for accumulating corr_fc_ampl.
        for (int i = ifirst; i < iStop; ++i)
          if (gains[i])
            corr_fc_ampl += correctedEnergy[i] / gains[i];
      } else {
        for (int i = ifirst; i < iStop; ++i)
          corr_fc_ampl += correctedEnergy[i];
        for (int i = 0; i < nRead; ++i)
          correctedEnergy[i] *= gains[i];
      }
    } else {
      correctedEnergy = &uncorrectedEnergy[0];
 
      // In this situation, we do not need to process all time slices
      const int istart = std::max(ifirst - 1, 0);
      const int iend = std::min(n + ifirst + 1, nRead);
      for (int i = istart; i < iend; ++i) {
        const int capid = digi[i].capid();
        float ta = cs[i] - calibs.pedestal(capid);
        if (i >= ifirst && i < iStop)
          fc_ampl += ta;
        ta *= calibs.respcorrgain(capid);
        uncorrectedEnergy[i] = ta;
      }
      corr_fc_ampl = fc_ampl;
    }
 
    // Uncorrected and corrected energies
    double ampl = 0.0, corr_ampl = 0.0;
    for (int i = ifirst; i < iStop; ++i) {
      ampl += uncorrectedEnergy[i];
      corr_ampl += correctedEnergy[i];
    }
 
    // Apply phase-based amplitude correction:
    if (corr && pulseCorrect) {
      ampl *= corr->getCorrection(fc_ampl);
      if (pileupCorrection) {
        if (!pulseShapeCorrApplied)
          corr_ampl *= corr->getCorrection(corr_fc_ampl);
      } else
        corr_ampl = ampl;
    }
 
    // Which energies we want to use for timing?
    const double* etime = readjustTiming ? &correctedEnergy[0] : &uncorrectedEnergy[0];
    int maxI = -1;
    double maxA = -1.e300;
    for (int i = ifirst; i < iStop; ++i)
      if (etime[i] > maxA) {
        maxA = etime[i];
        maxI = i;
      }
 
    // Fill out the output
    *p_maxA = maxA;
    *p_ampl = corr_ampl;
    *p_uncorr_ampl = ampl;
    *p_fc_ampl = readjustTiming ? corr_fc_ampl : fc_ampl;
    *p_nRead = nRead;
    *p_maxI = maxI;
 
    if (maxI <= 0 || maxI >= (nRead - 1)) {
      LogDebug("HCAL Pulse") << "HcalSimpleRecAlgoImpl::removePileup :"
                             << " Invalid max amplitude position, "
                             << " max Amplitude: " << maxI << " first: " << ifirst << " last: " << ifirst + n
                             << std::endl;
      *p_t0 = 0.f;
      *p_t2 = 0.f;
    } else {
      *p_t0 = etime[maxI - 1];
      *p_t2 = etime[maxI + 1];
    }
  }

References HcalCoder::adc2fC(), AbsOOTPileupCorrection::apply(), visDQMUpload::buf, alignCSCRings::corr, fwrapper::cs, mps_fire::i, AbsOOTPileupCorrection::inputIsEnergy(), LogDebug, SiStripPI::max, findQualityFiles::maxI, CaloSamples::MAXSAMPLES, min(), dqmiodumpmetadata::n, HcalCalibrations::pedestal(), and HcalCalibrations::respcorrgain().

Referenced by reco(), HcalSimpleRecAlgo::reconstruct(), and HcalSimpleRecAlgo::reconstructQIE10().