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PdgParticle.hpp
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1 // This file is part of the Acts project.
2 //
3 // Copyright (C) 2019 CERN for the benefit of the Acts project
4 //
5 // This Source Code Form is subject to the terms of the Mozilla Public
6 // License, v. 2.0. If a copy of the MPL was not distributed with this
7 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 
9 #pragma once
10 
11 #include <cstdint>
12 
13 namespace Acts {
14 
16 enum PdgParticle : int32_t {
17  eInvalid = 0,
18  eElectron = 11,
21  eMuon = 13,
23  eTau = 15,
25  eGamma = 22,
26  ePionZero = 111,
27  ePionPlus = 211,
29  eNeutron = 2112,
31  eProton = 2212,
33  eLead = 1000822080
34 };
35 
38  const auto value = static_cast<int32_t>(pdg);
39  return static_cast<PdgParticle>((0 <= value) ? value : -value);
40 }
41 
42 } // namespace Acts