Cascade.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#ifndef ALICEO2_CASCADE_H
#define ALICEO2_CASCADE_H
 
#include "ReconstructionDataFormats/GlobalTrackID.h"
#include "ReconstructionDataFormats/Track.h"
#include "ReconstructionDataFormats/PID.h"
#include "ReconstructionDataFormats/V0.h"
#include <array>
#include <Math/SVector.h>
 
namespace o2
{
namespace dataformats
{
 
class Cascade : public V0
{
 public:
  using V0::V0;
  Cascade() = default;
 
  Cascade(const std::array<float, 3>& xyz, const std::array<float, 3>& pxyz, const std::array<float, 6>& covxyz,
          const o2::track::TrackParCov& v0, const o2::track::TrackParCov& bachelor,
          o2::track::PID pid = o2::track::PID::XiMinus) : V0(xyz, pxyz, covxyz, v0, bachelor, pid) {}
 
  const Track& getV0Track() const { return mProngs[0]; }
  Track& getV0Track() { return mProngs[0]; }
 
  const Track& getBachelorTrack() const { return mProngs[1]; }
  Track& getBachelorTrack() { return mProngs[1]; }
 
  void setV0Track(const Track& t) { mProngs[0] = t; }
  void setBachelorTrack(const Track& t) { mProngs[1] = t; }
 
  float calcMass2AsXiMinus() const { return calcMass2PID(PID::Lambda, PID::Pion); }
  float calcMass2AsOmegaMinus() const { return calcMass2PID(PID::Lambda, PID::Kaon); }
 
  ClassDefNV(Cascade, 2);
};
 
} // namespace dataformats
} // namespace o2
#endif