/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_14/src/SimCalorimetry/EcalSimAlgos/src/ESShape.cc

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#include "SimCalorimetry/EcalSimAlgos/interface/ESShape.h"
#include <cmath>

ESShape::ESShape() {
}

double ESShape::operator () (double time_) const
{   
  if (time_>0.00001) {

    double wc = 0.07291;
    double n  = 1.798; // n-1 (in fact)
    double v1 = pow(wc/n*time_, n);
    double v2 = exp(n-wc*time_);
    double v  = v1*v2;

    return v;
  } 
  else {
    return 0.0;
  }
}

double
ESShape::timeToRise() const
{
   return 0.0 ;
}

/*
double ESShape::derivative (double time_) const
{
  if (time_>0.00001) {
    double xf = A_*omegac_*time_;
    return (Qcf_/norm_)*pow(xf,M_-1.)*exp(-omegac_*time_);
  } 
  else {
    return 0.0;
  }
}
*/