| 1 |
bendavid |
1.1 |
//--------------------------------------------------------------------------------------------------
|
| 2 |
loizides |
1.6 |
// $Id: DecayData.h,v 1.5 2008/12/03 17:37:46 loizides Exp $
|
| 3 |
bendavid |
1.1 |
//
|
| 4 |
|
|
// DecayData
|
| 5 |
|
|
//
|
| 6 |
loizides |
1.6 |
// Additional information on a stable daughter which is specific to a particular decay.
|
| 7 |
bendavid |
1.1 |
//
|
| 8 |
|
|
// Authors: J.Bendavid
|
| 9 |
|
|
//--------------------------------------------------------------------------------------------------
|
| 10 |
|
|
|
| 11 |
|
|
#ifndef MITANA_DATATREE_DECAYDATA_H
|
| 12 |
|
|
#define MITANA_DATATREE_DECAYDATA_H
|
| 13 |
|
|
|
| 14 |
|
|
#include "MitAna/DataTree/interface/DaughterData.h"
|
| 15 |
|
|
#include "MitAna/DataTree/interface/Types.h"
|
| 16 |
|
|
|
| 17 |
|
|
namespace mithep
|
| 18 |
|
|
{
|
| 19 |
|
|
class DecayData : public DaughterData
|
| 20 |
|
|
{
|
| 21 |
|
|
public:
|
| 22 |
|
|
DecayData() {}
|
| 23 |
loizides |
1.6 |
DecayData(const Particle *p, const FourVector &mom) : DaughterData(p), fMomAtVertex(mom) {}
|
| 24 |
loizides |
1.5 |
~DecayData() {}
|
| 25 |
bendavid |
1.1 |
|
| 26 |
loizides |
1.6 |
Double_t Dxy() const { return fDxy; }
|
| 27 |
|
|
Double_t DxyError() const { return fDxyError; }
|
| 28 |
|
|
Double_t E() const { return fMomAtVertex.E(); }
|
| 29 |
|
|
Double_t Lxy() const { return fLxy; }
|
| 30 |
|
|
Double_t LxyError() const { return fLxyError; }
|
| 31 |
|
|
Double_t Lz() const { return fLz; }
|
| 32 |
|
|
Double_t LzError() const { return fLzError; }
|
| 33 |
|
|
Double_t MassError() const { return fMassError; }
|
| 34 |
|
|
FourVector Mom() const { return FourVector(fMomAtVertex); }
|
| 35 |
|
|
EObjType ObjType() const { return kDecayData; }
|
| 36 |
|
|
Double_t P() const { return fMomAtVertex.P(); }
|
| 37 |
|
|
Double_t Px() const { return fMomAtVertex.Px(); }
|
| 38 |
|
|
Double_t Py() const { return fMomAtVertex.Py(); }
|
| 39 |
|
|
Double_t Pz() const { return fMomAtVertex.Pz(); }
|
| 40 |
|
|
const ThreeVector32 RelativePosition() const;
|
| 41 |
|
|
void SetDxy(Double_t dxy) { fDxy = dxy; }
|
| 42 |
|
|
void SetDxyError(Double_t dxyError) { fDxyError = dxyError; }
|
| 43 |
|
|
void SetLxy(Double_t lxy) { fLxy = lxy;}
|
| 44 |
|
|
void SetLxyError(Double_t lxyError) { fLxyError = lxyError; }
|
| 45 |
|
|
void SetLz(Double_t lz) { fLz = lz;}
|
| 46 |
|
|
void SetLzError(Double_t lzError) { fLzError = lzError; }
|
| 47 |
|
|
void SetMom(Double_t px, Double_t y, Double_t z, Double_t e);
|
| 48 |
|
|
void SetMom(const FourVector &mom) { fMomAtVertex = mom; }
|
| 49 |
|
|
void SetMassError(Double_t massError) { fMassError = massError; }
|
| 50 |
bendavid |
1.1 |
|
| 51 |
|
|
protected:
|
| 52 |
bendavid |
1.3 |
FourVectorM32 fMomAtVertex; //fitted momentum at vertex
|
| 53 |
loizides |
1.6 |
Double32_t fMassError; //fitted mass error
|
| 54 |
|
|
Double32_t fLxy; //fitted lxy
|
| 55 |
|
|
Double32_t fLxyError; //fitted lxy error
|
| 56 |
|
|
Double32_t fDxy; //fitted impact parameter
|
| 57 |
|
|
Double32_t fDxyError; //fitted impact parameter error
|
| 58 |
|
|
Double32_t fLz; //fitted lz
|
| 59 |
|
|
Double32_t fLzError; //fitted lz error
|
| 60 |
bendavid |
1.1 |
|
| 61 |
loizides |
1.6 |
ClassDef(DecayData, 1) // Decay data for stable daughter class
|
| 62 |
bendavid |
1.1 |
};
|
| 63 |
|
|
}
|
| 64 |
|
|
//--------------------------------------------------------------------------------------------------
|
| 65 |
|
|
inline void mithep::DecayData::SetMom(Double32_t px, Double32_t py, Double32_t pz, Double32_t e)
|
| 66 |
|
|
{
|
| 67 |
|
|
// Set four momentum.
|
| 68 |
|
|
|
| 69 |
|
|
fMomAtVertex.SetXYZT(px, py, pz, e);
|
| 70 |
|
|
}
|
| 71 |
|
|
|
| 72 |
|
|
//--------------------------------------------------------------------------------------------------
|
| 73 |
|
|
inline const mithep::ThreeVector32 mithep::DecayData::RelativePosition() const
|
| 74 |
|
|
{
|
| 75 |
loizides |
1.6 |
//Compute the position vector of the decay vertex relative to the parent decay vertex.
|
| 76 |
bendavid |
1.1 |
|
| 77 |
|
|
mithep::ThreeVector32 dz(0,0,fLz*TMath::Abs(fMomAtVertex.Pz())/fMomAtVertex.Pz());
|
| 78 |
|
|
mithep::ThreeVector32 momPerp(fMomAtVertex.Px(),fMomAtVertex.Py(),0);
|
| 79 |
|
|
mithep::ThreeVector32 zHat(0,0,1.0);
|
| 80 |
|
|
mithep::ThreeVector32 dxy = -momPerp.Cross(zHat)*fDxy/momPerp.R();
|
| 81 |
|
|
mithep::ThreeVector32 dlxy = momPerp*fLxy/momPerp.R();
|
| 82 |
|
|
return (dxy+dlxy+dz);
|
| 83 |
|
|
}
|
| 84 |
|
|
#endif
|
