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Atlfast::LeptonBinData Class Reference

#include <LeptonBinData.h>

Inheritance diagram for Atlfast::LeptonBinData:

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Collaboration diagram for Atlfast::LeptonBinData:

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List of all members.

Public Methods

 LeptonBinData ()
 Constructor from flat file contents.

 LeptonBinData (const BinID &id, const vector< HepMatrix > &interpol)
virtual ~LeptonBinData ()
HepMatrix getMatrix (const TrackTrajectory &track) const
 returns the correlation matrix depending on a random number supplied as argument

 LeptonBinData ()
 Constructor from flat file contents.

 LeptonBinData (const BinID &id, const vector< HepMatrix > &interpol)
HepMatrix getMatrix (const TrackTrajectory &track) const
 returns the correlation matrix depending on a random number supplied as argument


Private Attributes

BinID m_id
vector< HepMatrix > m_interpol
vector< HepMatrix > m_interpol

Constructor & Destructor Documentation

Atlfast::LeptonBinData::LeptonBinData (    )  [inline]
 

Constructor from flat file contents.

Definition at line 35 of file LeptonBinData.h.

References m_id, and m_interpol. 

00035 :m_id(), m_interpol(){};

Atlfast::LeptonBinData::LeptonBinData (  const BinID &    id,
const vector< HepMatrix > &    interpol
)  [inline]
 

Definition at line 36 of file LeptonBinData.h.

References m_id, and m_interpol. 

00036                                                                      :
00037       m_id(id),m_interpol(interpol){}
    virtual ~LeptonBinData() {}

virtual Atlfast::LeptonBinData::~LeptonBinData (    )  [inline, virtual]
 

Definition at line 38 of file LeptonBinData.h. 

00038 {}

Atlfast::LeptonBinData::LeptonBinData (    )  [inline]
 

Constructor from flat file contents.

Definition at line 34 of file MuonBinData.h.

References m_id, and m_interpol. 

00034 :m_id(), m_interpol(){};

Atlfast::LeptonBinData::LeptonBinData (  const BinID &    id,
const vector< HepMatrix > &    interpol
)  [inline]
 

Definition at line 35 of file MuonBinData.h.

References m_id, and m_interpol. 

00035                                                                      :
00036       m_id(id),m_interpol(interpol){}

Member Function Documentation

HepMatrix Atlfast::LeptonBinData::getMatrix (  const TrackTrajectory &    track )  const [virtual]
 

returns the correlation matrix depending on a random number supplied as argument

Implements Atlfast::IBinData.

Definition at line 23 of file LeptonBinData.cxx.

References Atlfast::BinID::high(), Atlfast::BinID::low(), m_id, and m_interpol. 

00023                                                                      {    
00024     TrackParameters track = traj.parameters();
00025     HepMatrix sigma(5,5,0);
00026     vector<double> sigmaParams, par1, par2;
00027     
00028     double eta = track.eta();
00029     double etaLow = m_id.low(0);
00030     double etaHigh = m_id.high(0);
00031     double etaRatio = (abs(eta) - etaLow ) / (etaHigh - etaLow);
00032     double pT = track.pT();
00033     double pTLow = m_id.low(1);
00034     double pTHigh = m_id.high(1);
00035 
00036     //    cout << "LeptonBinData:  Getting Matrix for eta: " <<eta<<" and pT: " << pT << endl;
00037     //    cout << "eta ratio " << etaRatio << " with pt low, high " << pTLow<<","<<pTHigh<<endl;
00038     //    cout << "eta low, high " << etaLow <<","<< etaHigh;
00039 
00040     vector<HepMatrix>::const_iterator iter = m_interpol.begin();
00041     vector<HepMatrix>::const_iterator end = m_interpol.end();
00042     for ( ;iter != end; ++iter){
00043       //  cout << "interpol = " << *iter << endl;
00044       par1.push_back( 
00045                      (*iter)[0][0] + 
00046                      ( (*iter)[1][0] - (*iter)[0][0] )*etaRatio
00047                      );
00048       
00049       par2.push_back( 
00050                      (*iter)[0][1] + 
00051                      ( (*iter)[1][1] - (*iter)[0][1] )*etaRatio
00052                      );
00053       
00054       // cout << "etaRatio interpol parameters are " << par1.back() << " and " << par2.back() << endl;
00055 
00056       double a,b;
00057       b = ( par2.back() - par1.back() ) * 
00058         ( (pTHigh*pTLow) ) *
00059         ( (pTHigh*pTLow) ) /
00060         ( (pTLow*pTLow)-(pTHigh*pTHigh) ); 
00061       
00062       a = ( par2.back()*(pTHigh*pTHigh) -
00063             par1.back()*(pTLow*pTLow)
00064             ) / 
00065         (   (pTHigh*pTHigh)-(pTLow*pTLow)   );
00066       
00067       sigmaParams.push_back( a + b/(pT*pT) );
00068       //cout << "a = " << a<<"   b = "<<b<<endl;
00069       //cout << "a + b/pT^2 = " << sigmaParams.back() << endl;
00070     }
00071     
00072     for (int i = 0;i < 5; i++){ 
00073       sigma[i][i] = sigmaParams[i];
00074     }
00075     sigma(1,3) = sigma(3,1) = sigmaParams[7];
00076     sigma(1,5) = sigma(5,1) = sigmaParams[6];
00077     sigma(2,4) = sigma(4,2) = sigmaParams[8];
00078     sigma(3,5) = sigma(5,3) = sigmaParams[5];
00079     return sigma;
00080   }

HepMatrix Atlfast::LeptonBinData::getMatrix (  const TrackTrajectory &    track )  const [virtual]
 

returns the correlation matrix depending on a random number supplied as argument

Implements Atlfast::IBinData.

Member Data Documentation

BinID Atlfast::LeptonBinData::m_id [private]
 

Definition at line 45 of file MuonBinData.h.

Referenced by getMatrix(), and LeptonBinData().

vector<HepMatrix> Atlfast::LeptonBinData::m_interpol [private]
 

Definition at line 47 of file LeptonBinData.h.

Referenced by getMatrix(), and LeptonBinData().

vector<HepMatrix> Atlfast::LeptonBinData::m_interpol [private]
 

Definition at line 46 of file MuonBinData.h.

The documentation for this class was generated from the following files:
Generated on Tue Mar 18 11:18:57 2003 for AtlfastAlgs by doxygen1.3-rc1