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PeakSigmaANHadEarlyEcalEc1.cxx

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#include "FastShowerUtils/Samplers/PeakSigmaANHadEarlyEcalEc1.h"
#include "FastShowerUtils/PolyArgs.h"
#include <cmath>
namespace FastShower{

  double PeakSigmaANHadEarlyEcalEc1::value(const PolyArgs& pa) const {
    //
    double energy  = pa.pp()->energy();
    double snFrac  = pa.cs()->cellSN();

    double p1 = 0.2117 - 0.001018*energy;
    double p2 = 0.1258 - 0.000654*energy;
    //
    return  p1 + p2*snFrac;
  }
  //
  IFn* PeakSigmaANHadEarlyEcalEc1::clone() const {
    return new PeakSigmaANHadEarlyEcalEc1();
  }
}//namespace

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