LorentzHelper.h File Reference

#include "Math/Vector4D.h"
#include "Math/VectorUtil.h"
#include "xAODTruth/TruthParticle.h"

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Functions
template<typename object>
PtEtaPhiMVector	GetPtEtaPhiM (const object *obj)
template<typename object>
PtEtaPhiEVector	GetPtEtaPhiE (const object *obj)
template<typename object>
PxPyPzMVector	GetPxPyPzM (const object *obj)
template<typename object>
PxPyPzEVector	GetPxPyPzE (const object *obj)
PtEtaPhiMVector	GetPtEtaPhiMfromTruth (const xAOD::TruthParticle *TruthParticle)
PxPyPzMVector	GetPxPyPzMfromTruth (const xAOD::TruthParticle *TruthParticle)
PtEtaPhiEVector	GetPtEtaPhiEfromTruth (const xAOD::TruthParticle *TruthParticle)
PxPyPzEVector	GetPxPyPzEfromTruth (const xAOD::TruthParticle *TruthParticle)

Function Documentation

GetPtEtaPhiE()

template<typename object>

PtEtaPhiEVector GetPtEtaPhiE

(

const object *

obj

)

Definition at line 34 of file LorentzHelper.h.

                                                {
  return PtEtaPhiEVector(
      obj->pt(),   // float px and py cast to double to build pT
      obj->eta(),  // double
      obj->phi(),  // double
      obj->e());   // double
}

GetPtEtaPhiEfromTruth()

PtEtaPhiEVector GetPtEtaPhiEfromTruth

(

const xAOD::TruthParticle *

TruthParticle

)

Definition at line 39 of file LorentzHelper.cxx.

                                            {
  asg::msgUserCode::ANA_MSG_WARNING(
      "LorentzHelper WARNING: We can't guarantee the mass from this 4-vector "
      "is correct, consider using GetPtEtaPhiMfromTruth");
  ROOT::Math::PtEtaPhiEVector EnergySafeVector(
      TruthParticle->pt(),
      TruthParticle->eta(),
      TruthParticle->phi(),
      TruthParticle->e());
  return EnergySafeVector;
}

GetPtEtaPhiM()

template<typename object>

PtEtaPhiMVector GetPtEtaPhiM

(

const object *

obj

)

Definition at line 24 of file LorentzHelper.h.

                                                {
  return PtEtaPhiMVector(
      obj->pt(),   // float px and py cast to double to build pT
      obj->eta(),  // double
      obj->phi(),  // double
      obj->m());   // double
}

GetPtEtaPhiMfromTruth()

PtEtaPhiMVector GetPtEtaPhiMfromTruth

(

const xAOD::TruthParticle *

TruthParticle

)

Definition at line 29 of file LorentzHelper.cxx.

                                            {
  ROOT::Math::PtEtaPhiMVector MassSafeVector(
      TruthParticle->pt(),
      TruthParticle->eta(),
      TruthParticle->phi(),
      TruthParticle->m());
  return MassSafeVector;
}

GetPxPyPzE()

template<typename object>

PxPyPzEVector GetPxPyPzE

(

const object *

obj

)

Definition at line 53 of file LorentzHelper.h.

                                            {
  return PxPyPzEVector(obj->px(),  // float
                       obj->py(),  // float
                       obj->pz(),  // float
                       obj->e());  // double
}

GetPxPyPzEfromTruth()

PxPyPzEVector GetPxPyPzEfromTruth

(

const xAOD::TruthParticle *

TruthParticle

)

Definition at line 52 of file LorentzHelper.cxx.

                                            {
  asg::msgUserCode::ANA_MSG_WARNING(
      "LorentzHelper WARNING: We can't guarantee the mass from this 4-vector "
      "is correct, consider using GetPxPyPzMfromTruth");
  ROOT::Math::PxPyPzEVector EnergySafeVector(
      TruthParticle->px(),
      TruthParticle->py(),
      TruthParticle->pz(),
      TruthParticle->e());
  return EnergySafeVector;
}

GetPxPyPzM()

template<typename object>

PxPyPzMVector GetPxPyPzM

(

const object *

obj

)

Definition at line 44 of file LorentzHelper.h.

                                            {
  return PxPyPzMVector(obj->px(),  // float
                       obj->py(),  // float
                       obj->pz(),  // float
                       obj->m());  // double
}

GetPxPyPzMfromTruth()

PxPyPzMVector GetPxPyPzMfromTruth

(

const xAOD::TruthParticle *

TruthParticle

)

Author

Baptiste Ravina bapti.nosp@m.ste..nosp@m.ravin.nosp@m.a@ce.nosp@m.rn.ch

Steffen Korn steff.nosp@m.en.k.nosp@m.orn@c.nosp@m.ern..nosp@m.ch

Definition at line 19 of file LorentzHelper.cxx.

                                            {
  ROOT::Math::PxPyPzMVector MassSafeVector(
      TruthParticle->px(),
      TruthParticle->py(),
      TruthParticle->pz(),
      TruthParticle->m());
  return MassSafeVector;
}