InclusiveKinematicsDA.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
// Copyright (C) 2022, 2023 Sylvester Joosten, Dmitry Romanov, Wouter Deconinck
 
#pragma once
 
#include <algorithms/algorithm.h>
#include <edm4eic/HadronicFinalStateCollection.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 InclusiveKinematicsDAAlgorithm = algorithms::Algorithm<
    algorithms::Input<edm4hep::MCParticleCollection, edm4hep::MCParticleCollection,
                      edm4eic::ReconstructedParticleCollection,
                      edm4eic::HadronicFinalStateCollection>,
    algorithms::Output<edm4eic::InclusiveKinematicsCollection>>;
 
class InclusiveKinematicsDA : public InclusiveKinematicsDAAlgorithm,
                              public WithPodConfig<NoConfig> {
 
public:
  InclusiveKinematicsDA(std::string_view name)
      : InclusiveKinematicsDAAlgorithm{
            name,
            {"MCBeamElectrons", "MCBeamProtons", "scatteredElectron", "hadronicFinalState"},
            {"inclusiveKinematics"},
            "Determine inclusive kinematics using double-angle method."} {}
 
  void init() final;
  void process(const Input&, const Output&) const final;
 
private:
  const algorithms::ParticleSvc& m_particleSvc = algorithms::ParticleSvc::instance();
  double m_crossingAngle{-0.025};
};
 
} // namespace eicrecon