PhspVolume.hpp

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// Copyright (c) 2013, 2017 The ComPWA Team.
// This file is part of the ComPWA framework, check
// https://github.com/ComPWA/ComPWA/license.txt for details.


#ifndef PhspVolume_h
#define PhspVolume_h

#include <utility>
#include <vector>

namespace ComPWA {
namespace Physics {

std::pair<double, double> PhspVolume(double s, std::vector<double> &FSMasses,
                                     std::size_t SampleSize = 1000);

double KallenFunction(double x, double y, double z);

double PhspVolumeTwoParticles(double s, double m1, double m2);

} // namespace Physics
} // namespace ComPWA

#endif