Interactions.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2018-2020 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

#include "Acts/Definitions/PdgParticle.hpp"
#include "Acts/Definitions/Units.hpp"
#include "Acts/Material/MaterialSlab.hpp"

#include <cmath>

namespace Acts {

float computeEnergyLossBethe(const MaterialSlab& slab, float m, float qOverP,
                             float absQ);
float deriveEnergyLossBetheQOverP(const MaterialSlab& slab, float m,
                                  float qOverP, float absQ);

float computeEnergyLossLandau(const MaterialSlab& slab, float m, float qOverP,
                              float absQ);
float deriveEnergyLossLandauQOverP(const MaterialSlab& slab, float m,
                                   float qOverP, float absQ);

float computeEnergyLossLandauSigma(const MaterialSlab& slab, float m,
                                   float qOverP, float absQ);

float computeEnergyLossLandauFwhm(const MaterialSlab& slab, float m,
                                  float qOverP, float absQ);

float computeEnergyLossLandauSigmaQOverP(const MaterialSlab& slab, float m,
                                         float qOverP, float absQ);

float computeEnergyLossRadiative(const MaterialSlab& slab, PdgParticle absPdg,
                                 float m, float qOverP, float absQ);
float deriveEnergyLossRadiativeQOverP(const MaterialSlab& slab,
                                      PdgParticle absPdg, float m, float qOverP,
                                      float absQ);

float computeEnergyLossMean(const MaterialSlab& slab, PdgParticle absPdg,
                            float m, float qOverP, float absQ);
float deriveEnergyLossMeanQOverP(const MaterialSlab& slab, PdgParticle absPdg,
                                 float m, float qOverP, float absQ);

float computeEnergyLossMode(const MaterialSlab& slab, PdgParticle absPdg,
                            float m, float qOverP, float absQ);
float deriveEnergyLossModeQOverP(const MaterialSlab& slab, PdgParticle absPdg,
                                 float m, float qOverP, float absQ);

float computeMultipleScatteringTheta0(const MaterialSlab& slab,
                                      PdgParticle absPdg, float m, float qOverP,
                                      float absQ);

}  // namespace Acts