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//--------------------------------------------------------------------------------------------------
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// $Id: Met.h,v 1.14 2009/04/07 12:16:56 loizides Exp $
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//
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// Met
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//
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// Class to store missing transverse energy information.
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// This is the base class for various specific kinds of met (CaloMet, PFMet, etc.),
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// but can also be used directly.
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//
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// Authors: C.Loizides
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//--------------------------------------------------------------------------------------------------
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#ifndef MITANA_DATATREE_MET_H
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#define MITANA_DATATREE_MET_H
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#include "MitAna/DataTree/interface/Types.h"
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#include "MitAna/DataTree/interface/Track.h"
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namespace mithep
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{
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class Met : public Particle
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{
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public:
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Met() :
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fMex(0), fMey(0), fSumEt(0), fElongit(0) { }
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Met(Double_t mex, Double_t mey) :
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fMex(mex), fMey(mey), fSumEt(0), fElongit(0) { }
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const FArrDouble32 &Dmex() const { return fDmex; }
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const FArrDouble32 &Dmey() const { return fDmey; }
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const FArrDouble32 &DSumEt() const { return fDSumEt; }
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Double_t Elongitudinal() const { return fElongit; }
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Bool_t HasCorrections() const;
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Double_t MetSig() const;
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Double_t Mex() const { return fMex; }
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Double_t Mey() const { return fMey; }
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EObjType ObjType() const { return kMet; }
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Double_t SumEt() const { return fSumEt; }
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void PushCorrectionX(Double_t x) { fDmex.Add(x); }
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void PushCorrectionY(Double_t x) { fDmey.Add(x); }
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void PushCorrectionSumEt(Double_t x) { fDSumEt.Add(x); }
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void SetElongitudinal(Double_t x) { fElongit = x; }
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void SetSumEt(Double_t x) { fSumEt = x; }
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protected:
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void Clear(Option_t * /*option*/ ="");
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void GetMom() const;
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Double32_t fMex; //[0,0,14]x-component
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Double32_t fMey; //[0,0,14]y-component
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Double32_t fSumEt; //[0,0,14]scalar sum of ET over all objects
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Double32_t fElongit; //[0,0,14]z-comp. of vector E sum
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FArrDouble32 fDmex; //||array of all corr. applied to MEx
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FArrDouble32 fDmey; //||array of all corr. applied to MEy
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FArrDouble32 fDSumEt; //||array of all corr. applied to SumET
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ClassDef(Met, 2) // Missing transverse energy class
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};
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}
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//--------------------------------------------------------------------------------------------------
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inline void mithep::Met::Clear(Option_t *)
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{
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// Clear by deleting the std::vectors.
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fDmex.Clear();
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fDmey.Clear();
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fDSumEt.Clear();
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}
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//--------------------------------------------------------------------------------------------------
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inline void mithep::Met::GetMom() const
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{
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// Get momentum values from stored values.
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Double_t pt = TMath::Sqrt(fMex*fMex+fMey*fMey);
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Double_t phi = TMath::ATan2(fMey,fMex);
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fCachedMom.SetCoordinates(pt,0,phi,0);
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}
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//--------------------------------------------------------------------------------------------------
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inline Double_t mithep::Met::MetSig() const
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{
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// Calculate Met Significance
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if (fSumEt>0.0)
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return (Et()/TMath::Sqrt(fSumEt));
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else
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return -1.0;
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}
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#endif
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