TransformBreitFrame.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
// Copyright (C) 2024 John Lajoie
 
#pragma once
 
#include <algorithms/algorithm.h>
#include <edm4eic/InclusiveKinematicsCollection.h>
#include <edm4eic/ReconstructedParticleCollection.h>
#include <edm4hep/MCParticleCollection.h>
#include <string>
#include <string_view>
 
#include "algorithms/interfaces/WithPodConfig.h"
#include "services/particle/ParticleSvc.h"
 
namespace eicrecon {
 
using TransformBreitFrameAlgorithm = algorithms::Algorithm<
    algorithms::Input<edm4hep::MCParticleCollection, edm4eic::InclusiveKinematicsCollection,
                      edm4eic::ReconstructedParticleCollection>,
    algorithms::Output<edm4eic::ReconstructedParticleCollection>>;
 
class TransformBreitFrame : public TransformBreitFrameAlgorithm, public WithPodConfig<NoConfig> {
 
public:
  TransformBreitFrame(std::string_view name)
      : TransformBreitFrameAlgorithm{
            name,
            {"inputMCParticles", "inputInclusiveKinematics", "inputReconstructedParticles"},
            {"outputReconstructedParticles"},
            "Transforms a set of particles from the lab frame to the Breit frame"} {}
 
  // algorithm initialization
  void init() final {};
 
  // run algorithm
  void process(const Input&, const Output&) const final;
 
private:
  const algorithms::ParticleSvc& m_particleSvc = algorithms::ParticleSvc::instance();
  double m_crossingAngle{-0.025};
 
}; // end TransformBreitFrame definition
 
} // namespace eicrecon