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//************************************************************************//
// //
// Copyright 2014 Bertram Kopf (bertram@ep1.rub.de) //
// Julian Pychy (julian@ep1.rub.de) //
// - Ruhr-Universität Bochum //
// //
// This file is part of Pawian. //
// //
// Pawian is free software: you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation, either version 3 of the License, or //
// (at your option) any later version. //
// //
// Pawian is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with Pawian. If not, see <http://www.gnu.org/licenses/>. //
// //
//************************************************************************//
#include "PwaDynamics/PhaseSpaceIsobarAS.hh"
#include "qft++/relativistic-quantum-mechanics/Utils.hh"
PhaseSpaceIsobarAS::PhaseSpaceIsobarAS(double mass1, double mass2):
AbsPhaseSpace()
, _mass1(mass1)
,_mass2(mass2)
{
}
PhaseSpaceIsobarAS::~PhaseSpaceIsobarAS(){
}
complex<double> PhaseSpaceIsobarAS::factor(const double mass){
return phaseSpaceFacAS(mass,_mass1, _mass2);
}
complex<double> PhaseSpaceIsobarAS::breakUpMom(const double mass){
return breakupMomQAS(mass,_mass1, _mass2);
}
complex<double> PhaseSpaceIsobarAS::factor(const complex<double> mass){
// Calc from the breakup momentum to account for chosen sign
complex<double> q = breakupMomQAS(mass,_mass1, _mass2);
CorrectForChosenSign(q);
return q * 2. / mass;
}
complex<double> PhaseSpaceIsobarAS::breakUpMom(const complex<double> mass){
complex<double> q = breakupMomQAS(mass,_mass1, _mass2);
CorrectForChosenSign(q);
return q;
}