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// $Id: StableData.h,v 1.1 2008/09/19 11:58:02 bendavid Exp $
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//
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// StableData
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//
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// Additional information on a stable daughter which is specific to a particular decay
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//
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//
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// Authors: J.Bendavid
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//--------------------------------------------------------------------------------------------------
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#ifndef MITANA_DATATREE_STABLEDATA_H
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#define MITANA_DATATREE_STABLEDATA_H
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#include "MitAna/DataTree/interface/StableParticle.h"
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#include "MitAna/DataTree/interface/DaughterData.h"
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#include "MitAna/DataTree/interface/Types.h"
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namespace mithep
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{
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class StableData : public DaughterData
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{
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public:
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StableData() {}
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StableData(Particle* p, const ThreeVector &mom) :
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DaughterData(p),
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fMomAtVertex(mom) {}
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StableData(Particle* p, Double_t px, Double_t py, Double_t pz) :
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DaughterData(p),
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fMomAtVertex(px,py,pz) {}
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virtual ~StableData() {}
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Double_t Px() const { return fMomAtVertex.X(); }
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Double_t Py() const { return fMomAtVertex.Y(); }
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Double_t Pz() const { return fMomAtVertex.Z(); }
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Double_t P() const { return fMomAtVertex.R(); }
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Double_t E() const { return TMath::Sqrt(P()*P()+Mass()*Mass()); }
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Double_t Mass() const { return Original()->Mass(); }
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FourVector Mom() const;
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void SetThreeMom(Double_t px, Double_t y, Double_t z);
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void SetThreeMom(const ThreeVector &mom) { fMomAtVertex = mom; }
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const ThreeVector &ThreeMom() const { return fMomAtVertex; }
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protected:
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ThreeVector fMomAtVertex; //fitted momentum at vertex
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ClassDef(StableData, 1) // Stable daughter class
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};
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}
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//-------------------------------------------------------------------------------------------------
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inline mithep::FourVector mithep::StableData::Mom() const
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{
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// Return Momentum
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return FourVector(Px(), Py(), Pz(), E());
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}
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//--------------------------------------------------------------------------------------------------
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inline void mithep::StableData::SetThreeMom(Double_t px, Double_t py, Double_t pz)
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{
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// Set four momentum.
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fMomAtVertex.SetXYZ(px, py, pz);
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}
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#endif
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