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#include <TFitParticleMomDev.h>
Public Member Functions | |
| virtual TLorentzVector * | calc4Vec (const TMatrixD *params) |
| virtual TAbsFitParticle * | clone (TString newname="") const |
| virtual TMatrixD * | getDerivative () |
| virtual void | setIni4Vec (const TLorentzVector *pini) |
| TFitParticleMomDev () | |
| TFitParticleMomDev (TLorentzVector *pini, const TMatrixD *theCovMatrix) | |
| TFitParticleMomDev (const TFitParticleMomDev &fitParticle) | |
| TFitParticleMomDev (const TString &name, const TString &title, TLorentzVector *pini, const TMatrixD *theCovMatrix) | |
| virtual TMatrixD * | transform (const TLorentzVector &vec) |
| virtual | ~TFitParticleMomDev () |
Protected Member Functions | |
| void | init (TLorentzVector *pini, const TMatrixD *theCovMatrix) |
Definition at line 12 of file TFitParticleMomDev.h.
| TFitParticleMomDev::TFitParticleMomDev | ( | ) |
Definition at line 34 of file TFitParticleMomDev.cc.
References init().
Referenced by clone().
:TAbsFitParticle() { init(0, 0); }
| TFitParticleMomDev::TFitParticleMomDev | ( | const TFitParticleMomDev & | fitParticle | ) |
Definition at line 40 of file TFitParticleMomDev.cc.
References TAbsFitParticle::_covMatrix, TAbsFitParticle::_iniparameters, TAbsFitParticle::_nPar, TAbsFitParticle::_parameters, TAbsFitParticle::_pcurr, TAbsFitParticle::_pini, TAbsFitParticle::_u1, TAbsFitParticle::_u2, and TAbsFitParticle::_u3.
:TAbsFitParticle( fitParticle.GetName(), fitParticle.GetTitle() ) { _nPar = fitParticle._nPar; _u1 = fitParticle._u1; _u2 = fitParticle._u2; _u3 = fitParticle._u3; _covMatrix.ResizeTo( fitParticle._covMatrix ); _covMatrix = fitParticle._covMatrix; _iniparameters.ResizeTo( fitParticle._iniparameters ); _iniparameters = fitParticle._iniparameters; _parameters.ResizeTo( fitParticle._parameters ); _parameters = fitParticle._parameters; _pini = fitParticle._pini; _pcurr = fitParticle._pcurr; }
| TFitParticleMomDev::TFitParticleMomDev | ( | TLorentzVector * | pini, |
| const TMatrixD * | theCovMatrix | ||
| ) |
Definition at line 59 of file TFitParticleMomDev.cc.
References init().
:TAbsFitParticle() { init(pini, theCovMatrix); }
| TFitParticleMomDev::TFitParticleMomDev | ( | const TString & | name, |
| const TString & | title, | ||
| TLorentzVector * | pini, | ||
| const TMatrixD * | theCovMatrix | ||
| ) |
Definition at line 65 of file TFitParticleMomDev.cc.
References init().
:TAbsFitParticle(name, title) { init(pini, theCovMatrix); }
| TFitParticleMomDev::~TFitParticleMomDev | ( | ) | [virtual] |
Definition at line 84 of file TFitParticleMomDev.cc.
{
}
| TLorentzVector * TFitParticleMomDev::calc4Vec | ( | const TMatrixD * | params | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 141 of file TFitParticleMomDev.cc.
References TAbsFitParticle::_nPar, TAbsFitParticle::_pini, TAbsFitParticle::_u1, TAbsFitParticle::_u2, TAbsFitParticle::_u3, X, and Gflash::Z.
{
// Calculates a 4vector corresponding to the given
// parameter values
if (params == 0) {
return 0;
}
if ( params->GetNcols() != 1 || params->GetNrows() !=_nPar ) {
edm::LogError ("WrongMatrixSize")
<< GetName() << "::calc4Vec - Parameter matrix has wrong size.";
return 0;
}
Double_t X = _pini.P() * (*params)(0,0) *_u1.X() +
(*params)(1,0) * _u2.X()+
(*params)(2,0) * _u3.X();
Double_t Y = _pini.P() * (*params)(0,0) *_u1.Y() +
(*params)(1,0) * _u2.Y()+
(*params)(2,0) * _u3.Y();
Double_t Z = _pini.P() * (*params)(0,0) *_u1.Z() +
(*params)(1,0) * _u2.Z()+
(*params)(2,0) * _u3.Z();
Double_t E = TMath::Sqrt( X*X + Y*Y + Z*Z + (*params)(3,0)*(*params)(3,0)*_pini.M2() );
TLorentzVector* vec = new TLorentzVector( X, Y, Z, E );
return vec;
}
| TAbsFitParticle * TFitParticleMomDev::clone | ( | TString | newname = "" | ) | const [virtual] |
Implements TAbsFitParticle.
Definition at line 72 of file TFitParticleMomDev.cc.
References TFitParticleMomDev().
{
// Returns a copy of itself
TAbsFitParticle* myclone = new TFitParticleMomDev( *this );
if ( newname.Length() > 0 ) myclone->SetName(newname);
return myclone;
}
| TMatrixD * TFitParticleMomDev::getDerivative | ( | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 171 of file TFitParticleMomDev.cc.
References TAbsFitParticle::_parameters, TAbsFitParticle::_pcurr, TAbsFitParticle::_pini, TAbsFitParticle::_u1, TAbsFitParticle::_u2, and TAbsFitParticle::_u3.
{
// returns derivative dP/dy with P=(p,E) and y=(r, theta, phi, d)
// the free parameters of the fit. The columns of the matrix contain
// (dP/dr, dP/dtheta, dP/dphi, dP/dd).
TMatrixD* DerivativeMatrix = new TMatrixD(4,4);
(*DerivativeMatrix) *= 0.;
//1st column: dP/dr
(*DerivativeMatrix)(0,0)=_pini.P()*_u1.X();
(*DerivativeMatrix)(1,0)=_pini.P()*_u1.Y();
(*DerivativeMatrix)(2,0)=_pini.P()*_u1.Z();
(*DerivativeMatrix)(3,0)=0.;
//2nd column: dP/dtheta
(*DerivativeMatrix)(0,1)=_u2.X();
(*DerivativeMatrix)(1,1)=_u2.Y();
(*DerivativeMatrix)(2,1)=_u2.Z();
(*DerivativeMatrix)(3,1)=0.;
//3rd column: dP/dphi
(*DerivativeMatrix)(0,2)=_u3.X();
(*DerivativeMatrix)(1,2)=_u3.Y();
(*DerivativeMatrix)(2,2)=_u3.Z();
(*DerivativeMatrix)(3,2)=0.;
//4th column: dP/dm
(*DerivativeMatrix)(0,3)=0.;
(*DerivativeMatrix)(1,3)=0.;
(*DerivativeMatrix)(2,3)=0.;
(*DerivativeMatrix)(3,3)=_pini.M()*_pini.M()*_parameters(3,0)/_pcurr.E();
return DerivativeMatrix;
}
| void TFitParticleMomDev::init | ( | TLorentzVector * | pini, |
| const TMatrixD * | theCovMatrix | ||
| ) | [protected] |
Definition at line 91 of file TFitParticleMomDev.cc.
References TAbsFitParticle::_iniparameters, TAbsFitParticle::_nPar, TAbsFitParticle::_parameters, TAbsFitParticle::setCovMatrix(), and setIni4Vec().
Referenced by TFitParticleMomDev().
{
_nPar = 4;
_iniparameters.ResizeTo(_nPar,1);
_iniparameters(0,0)=1.;
_iniparameters(1,0)=0.;
_iniparameters(2,0)=0.;
_iniparameters(3,0)=1.;
_parameters.ResizeTo(_nPar,1);
_parameters = _iniparameters;
setIni4Vec(pini);
setCovMatrix(theCovMatrix);
}
| void TFitParticleMomDev::setIni4Vec | ( | const TLorentzVector * | pini | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 107 of file TFitParticleMomDev.cc.
References TAbsFitParticle::_iniparameters, TAbsFitParticle::_parameters, TAbsFitParticle::_pcurr, TAbsFitParticle::_pini, TAbsFitParticle::_u1, TAbsFitParticle::_u2, and TAbsFitParticle::_u3.
Referenced by init().
{
// Set the initial 4vector. Will also set the
// inital parameter values
if (pini == 0) {
_u1.SetXYZ(0., 0., 0.);
_u3.SetXYZ(0., 0., 0.);
_u2.SetXYZ(0., 0., 0.);
_pini.SetXYZT(0., 0., 0., 0.);
_pcurr = _pini;
} else {
_pini = (*pini);
_pcurr = _pini;
_u1 = pini->Vect();
_u1 *= 1./_u1.Mag();
TVector3 uz(0., 0., 1.);
_u3 = uz.Cross(_u1);
_u3 *= 1./_u3.Mag();
_u2 = _u3.Cross(_u1);
_u2 *= 1./_u2.Mag();
}
// reset parameters
_parameters = _iniparameters;
}
| TMatrixD * TFitParticleMomDev::transform | ( | const TLorentzVector & | vec | ) | [virtual] |
Implements TAbsFitParticle.
Definition at line 206 of file TFitParticleMomDev.cc.
References TAbsFitParticle::_nPar, TAbsFitParticle::_pini, TAbsFitParticle::_u1, TAbsFitParticle::_u2, TAbsFitParticle::_u3, and makeMuonMisalignmentScenario::rot.
{
// Returns the parameters corresponding to the given
// 4vector wrt. to the current base vectors u_r, u_theta, and u_phi
// construct rotation matrix
TRotation rot;
rot.RotateAxes( _u1, _u2, _u3 );
rot.Invert();
// rotate vector
TVector3 vec3( vec.Vect() );
vec3.Transform( rot );
// retrieve parameters
TMatrixD* tparams = new TMatrixD( _nPar, 1 );
(*tparams)(0,0) = vec3(0)/_pini.P();
(*tparams)(1,0) = vec3(1);
(*tparams)(2,0) = vec3(2);
(*tparams)(3,0) = vec.M()/_pini.M();
return tparams;
}
1.7.3