IMissingMassTool.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
// Asg wrapper around the MissingMassCalculator
// author Quentin Buat <quentin.buat@no.spam.cern.ch>
#ifndef DITAUMASSTOOLS_IMISSINGMASSTOOL_H
#define DITAUMASSTOOLS_IMISSINGMASSTOOL_H
 
 
#include "PATInterfaces/CorrectionCode.h"
#include "AsgTools/IAsgTool.h"
 
// EDM Include
#include "xAODEventInfo/EventInfo.h"
#include "xAODMissingET/MissingET.h"
#include "xAODBase/IParticle.h"
 
class IMissingMassTool : public virtual asg::IAsgTool
 
{
 
  // Declare the interface that the class provides 
  ASG_TOOL_INTERFACE(IMissingMassTool)
 
  public:
  using PtEtaPhiMVector = ROOT::Math::PtEtaPhiMVector;
  using XYVector = ROOT::Math::XYVector;

  virtual ~IMissingMassTool() {};
  
// generic method
  virtual CP::CorrectionCode  apply(const xAOD::EventInfo& ei,
                    const xAOD::IParticle* part1,
                    const xAOD::IParticle* part2,
                    const xAOD::MissingET* met,
                    const int & njets)=0;
 
  virtual CP::CorrectionCode doCollinearApprox(const xAOD::IParticle* part1,
                                               const xAOD::IParticle* part2,
                                               const xAOD::MissingET* met,
                                               const bool kMMCsynchronize,
                                               double &mass, double &xp1, double &xp2)=0;
 
  virtual double GetFitStatus(const int method)=0;
  virtual double GetFittedMass(const int method)=0;
  virtual double GetFittedMassErrorUp(int method)=0;
  virtual double GetFittedMassErrorLow(int method)=0;
  virtual PtEtaPhiMVector GetResonanceVec(int method) = 0;
  virtual XYVector GetFittedMetVec(int method) = 0;
  virtual PtEtaPhiMVector GetNeutrino4vec(int method, int index) = 0;
  virtual PtEtaPhiMVector GetTau4vec(int method, int index) = 0;
  virtual int GetNNoSol()=0;
  virtual int GetNMetroReject()=0;
  virtual int GetNSol()=0;
 
};
#endif