Acts/EventData/TrackParameters.hpp

0001 // This file is part of the ACTS project.
0002 //
0003 // Copyright (C) 2016 CERN for the benefit of the ACTS project
0004 //
0005 // This Source Code Form is subject to the terms of the Mozilla Public
0006 // License, v. 2.0. If a copy of the MPL was not distributed with this
0007 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
0008
0009 #pragma once
0010
0011 #include "Acts/EventData/GenericBoundTrackParameters.hpp"
0012 #include "Acts/EventData/GenericFreeTrackParameters.hpp"
0013 #include "Acts/EventData/ParticleHypothesis.hpp"
0014
0015 namespace Acts {
0016
0017 /// @brief Type alias for bound track parameters of singly charged particles
0018 /// @details Track parameters defined in a local coordinate system for particles with charge ±1
0019 using SinglyChargedBoundTrackParameters =
0020     GenericBoundTrackParameters<SinglyChargedParticleHypothesis>;
0021 /// Type alias for free track parameters of singly charged particles
0022 using SinglyChargedFreeTrackParameters =
0023     GenericFreeTrackParameters<SinglyChargedParticleHypothesis>;
0024
0025 /// @brief Type alias for bound track parameters of neutral particles
0026 /// @details Track parameters for neutral particles in a bound coordinate system
0027 using NeutralBoundTrackParameters =
0028     GenericBoundTrackParameters<NeutralParticleHypothesis>;
0029 /// Type alias for free track parameters of neutral particles
0030 using NeutralFreeTrackParameters =
0031     GenericFreeTrackParameters<NeutralParticleHypothesis>;
0032
0033 /// @brief BoundTrackParameters can hold any kind of charge
0034 using BoundTrackParameters = GenericBoundTrackParameters<ParticleHypothesis>;
0035 /// @brief FreeTrackParameters can hold any kind of charge
0036 using FreeTrackParameters = GenericFreeTrackParameters<ParticleHypothesis>;
0037
0038 }  // namespace Acts