LauAsymmCalc.cc

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// Copyright University of Warwick 2004 - 2013.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

// Authors:
// Thomas Latham
// John Back
// Paul Harrison

#include "TMath.h"

#include "LauAsymmCalc.hh"

ClassImp(LauAsymmCalc)


LauAsymmCalc::LauAsymmCalc(Double_t negValue, Double_t posValue) :
        negValue_(negValue),
        posValue_(posValue),
        asymm_(0.0)
{
        asymm_ = calcAsymmetry();
}

LauAsymmCalc::LauAsymmCalc(const LauAsymmCalc& rhs) :
        negValue_(rhs.negValue_),
        posValue_(rhs.posValue_),
        asymm_(rhs.asymm_)
{
}

LauAsymmCalc& LauAsymmCalc::operator=(const LauAsymmCalc& rhs)
{
        if ( &rhs != this ) {
                negValue_ = rhs.negValue_;
                posValue_ = rhs.posValue_;
                asymm_ = rhs.asymm_;
        }
        return *this;
}

LauAsymmCalc::~LauAsymmCalc()
{
}

Double_t LauAsymmCalc::calcAsymmetry()
{
        Double_t num = negValue_ - posValue_;
        Double_t denom = negValue_ + posValue_;
        Double_t asymm(0.0);
        if (TMath::Abs(denom) > 1e-10) {
                asymm = num/denom;
        }

        return asymm;
}