CascadeTools.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
#ifndef DERIVATIONFRAMEWORKBPHYS_CASCADETOOLS_H
#define DERIVATIONFRAMEWORKBPHYS_CASCADETOOLS_H
//*********************
// CascadeTools header file
//
// Eva Bouhova <e.bouhova@cern.ch>
// Adam Barton <abarton@cern.ch>
 
#include "AthenaBaseComps/AthAlgTool.h"
#include "xAODTracking/Vertex.h"
 
 
namespace DerivationFramework {
 
  class CascadeTools : public AthAlgTool{
 
    public:

    CascadeTools(const std::string& t, const std::string& n, const IInterface* p);
    
    ~CascadeTools();
 
    Amg::Vector3D momentum(const std::vector<TLorentzVector> &particleMom) const;
    Amg::Vector3D pca(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
 
    double invariantMass(const std::vector<TLorentzVector> &moms, const std::vector<double> &masses) const;
    double invariantMass(const std::vector<TLorentzVector> &moms) const;
    double invariantMassError(const std::vector<TLorentzVector> &moms,  const Amg::MatrixX& cov, const std::vector<double> &masses) const;
    double invariantMassError(const std::vector<TLorentzVector> &moms,  const Amg::MatrixX& cov) const;
    double pT(const std::vector<TLorentzVector> &moms) const;
    double pTError(const std::vector<TLorentzVector> &moms, const Amg::MatrixX& cov) const;
    double lxy(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double lxyError(const std::vector<TLorentzVector> &particleMom, const Amg::MatrixX& cov, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double tau(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double tauError(const std::vector<TLorentzVector> &particleMom, const Amg::MatrixX& cov, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double tau(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV, double M) const;
    double tauError(const std::vector<TLorentzVector> &particleMom, const Amg::MatrixX& cov, const xAOD::Vertex* SV, const xAOD::Vertex* PV, double M) const;
    double a0z(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double a0zError(const std::vector<TLorentzVector> &particleMom, const Amg::MatrixX& cov, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double a0xy(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double a0xyError(const std::vector<TLorentzVector> &particleMom, const Amg::MatrixX& cov, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double a0(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double a0Error(const std::vector<TLorentzVector> &particleMom, const Amg::MatrixX& cov, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double cosTheta(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double cosTheta_xy(const std::vector<TLorentzVector> &particleMom, const xAOD::Vertex* SV, const xAOD::Vertex* PV) const;
    double massProbability(double V0Mass, double mass, double massErr) const;
    double vertexProbability(int ndf, double chi2) const;
 
    Amg::MatrixX * convertCovMatrix(const xAOD::Vertex * vxCandidate) const;
    Amg::MatrixX SetFullMatrix(int NTrk, const std::vector<float> & Matrix) const;
 
  }; //end of class definitions
 
} //end of namespace definitions
 
 
#endif