AtlfastAlgs: Atlfast::EtaBin Class Reference

Atlfast::EtaBin::EtaBin	(	double	deltaponp,
		int	bin
	)

Definition at line 75 of file MuonSpectrometer.cxx.

00075                                             :
00076     m_etabin(etabin), m_etamin(0.), m_etamax(0.), m_deltaponp(0.01*deltaponp){}

void Atlfast::EtaBin::setEtaStuff	(	double	etaFirst,
		double	deltaEta
	)

Definition at line 78 of file MuonSpectrometer.cxx.

00078                                                           {
00079     
00080     m_etavalue = deltaEta*double(m_etabin);
00081     m_etamin = m_etabin ? deltaEta*double(m_etabin-0.5) + etaFirst: etaFirst;
00082     m_etamax = deltaEta*double(m_etabin+0.5);
00083 
00084   }

void Atlfast::EtaBin::combine	(	EtaBin &	otherEtaBin,
		double	thispt,
		double	nextpt
	)

Definition at line 86 of file MuonSpectrometer.cxx.

00086                                                                        {
00087 
00088     
00089     m_constterm = 1.;
00090     m_ptterm = 0;
00091 
00092     if (m_deltaponp < 1.){
00093       
00094       double resthis = m_deltaponp;
00095       double resnext = otherEtaBin.m_deltaponp;
00096       double delossthis = dEnergyLoss(m_etavalue,thispt);
00097       double delossnext = dEnergyLoss(m_etavalue,nextpt);
00098       
00099       m_ptterm = ( resnext*resnext - resthis*resthis
00100                    - (delossnext*delossnext - delossthis*delossthis ) ) /
00101         (nextpt*nextpt - thispt*thispt);
00102       
00103       m_constterm = resthis*resthis - m_ptterm*thispt*thispt - delossthis*delossthis;
00104       
00105     }    
00106   }

double Atlfast::EtaBin::calculateResolution ( const HepLorentzVector & avec )

Definition at line 108 of file MuonSpectrometer.cxx.

00108                                                                 {
00109 
00110     double resolution = 1.;
00111     if (m_constterm < 1.){ // Otherwise return resolution of 1.0
00112       double dEloss = dEnergyLoss(avec);
00113       double pT = avec.perp();
00114       double resolution_squared = m_constterm + m_ptterm*pT*pT + dEloss*dEloss;
00115       if (resolution_squared > 0. && resolution_squared < 1.)
00116         resolution = sqrt(resolution_squared);
00117     }
00118     return resolution;
00119   }

void Atlfast::EtaBin::dump ( std::string indent )

Definition at line 121 of file MuonSpectrometer.cxx.

00121                                    {
00122     indent += " ";
00123     std::cout<<std::endl;
00124     std::cout<<indent<<"\nDump for EtaBin:\n";
00125     std::cout<<indent<<"m_etabin "<<m_etabin<<std::endl;
00126     std::cout<<indent<<"m_etamin "<<m_etamin<<std::endl;
00127     std::cout<<indent<<"m_etamax "<<m_etamax<<std::endl;
00128     std::cout<<indent<<"m_deltaponp "<<m_deltaponp<<std::endl;
00129     std::cout<<indent<<"m_constterm "<<m_constterm<<std::endl;
00130     std::cout<<indent<<"m_ptterm "<<m_ptterm<<std::endl;
00131   }

double Atlfast::EtaBin::getEtaMin ( ) [inline]

Definition at line 20 of file MuonSpectrometer.h.

00020 {return m_etamin;}

double Atlfast::EtaBin::getEtaMax ( ) [inline]

Definition at line 21 of file MuonSpectrometer.h.

00021 {return m_etamax;}

int Atlfast::EtaBin::m_etabin [private]

Definition at line 23 of file MuonSpectrometer.h.

double Atlfast::EtaBin::m_etamin [private]

Definition at line 24 of file MuonSpectrometer.h.

double Atlfast::EtaBin::m_etamax [private]

Definition at line 25 of file MuonSpectrometer.h.

double Atlfast::EtaBin::m_etavalue [private]

Definition at line 26 of file MuonSpectrometer.h.

double Atlfast::EtaBin::m_deltaponp [private]

Definition at line 27 of file MuonSpectrometer.h.

double Atlfast::EtaBin::m_constterm [private]

Definition at line 28 of file MuonSpectrometer.h.

double Atlfast::EtaBin::m_ptterm [private]

Definition at line 29 of file MuonSpectrometer.h.

Atlfast::EtaBin Class Reference

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation


Public Member Functions
	EtaBin (double deltaponp, int bin)
void	setEtaStuff (double etaFirst, double deltaEta)
void	combine (EtaBin &otherEtaBin, double thispt, double nextpt)
double	calculateResolution (const HepLorentzVector &avec)
void	dump (std::string indent)
double	getEtaMin ()
double	getEtaMax ()
Private Attributes
int	m_etabin
double	m_etamin
double	m_etamax
double	m_etavalue
double	m_deltaponp
double	m_constterm
double	m_ptterm