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TailFracS0HadEarlyHcalEc2.cxx

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#include "FastShowerUtils/Samplers/TailFracS0HadEarlyHcalEc2.h"
#include "FastShowerUtils/PolyArgs.h"

#include <cmath>
namespace FastShower{

  double TailFracS0HadEarlyHcalEc2::value(const PolyArgs& pa) const {

    double energy = pa.pp()->energy();
    double aDelEta = fabs(pa.pp()->delEta());

    // this is Bin1 fraction (0.0-0.1)
    double p1 = 0.1 - 0.0015*energy;
    double p2 = 1.5 - 0.025*energy;
    //
    return  p1 + p2*aDelEta;
  }
  //
  IFn* TailFracS0HadEarlyHcalEc2::clone() const {
    return new TailFracS0HadEarlyHcalEc2();
  }
}//namespace

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