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TwoBodyDecayTrajectory Class Reference

#include <TwoBodyDecayTrajectory.h>

Inheritance diagram for TwoBodyDecayTrajectory:
ReferenceTrajectoryBase ReferenceCounted

Public Types

typedef std::pair< ConstRecHitContainer, ConstRecHitContainerConstRecHitCollection
 
typedef TransientTrackingRecHit::ConstRecHitContainer ConstRecHitContainer
 
- Public Types inherited from ReferenceTrajectoryBase
enum  MaterialEffects {
  none, multipleScattering, energyLoss, combined,
  breakPoints, brokenLinesCoarse, brokenLinesFine, localGBL,
  curvlinGBL
}
 
typedef ReferenceCountingPointer< ReferenceTrajectoryBaseReferenceTrajectoryPtr
 

Public Member Functions

TwoBodyDecayTrajectoryclone (void) const override
 
const std::pair< int, int > numberOfRecHits (void)
 
 TwoBodyDecayTrajectory (const TwoBodyDecayTrajectoryState &tsos, const ConstRecHitCollection &recHits, const MagneticField *magField, const reco::BeamSpot &beamSpot, const ReferenceTrajectoryBase::Config &config)
 
 TwoBodyDecayTrajectory (void)
 
 ~TwoBodyDecayTrajectory (void) override
 
- Public Member Functions inherited from ReferenceTrajectoryBase
const AlgebraicMatrixderivatives () const
 
const Eigen::MatrixXd & gblExtDerivatives () const
 
const Eigen::VectorXd & gblExtMeasurements () const
 
const Eigen::VectorXd & gblExtPrecisions () const
 
std::vector< std::pair< std::vector< gbl::GblPoint >, Eigen::MatrixXd > > & gblInput ()
 
bool isValid ()
 
const AlgebraicMatrixlocalToTrajectory () const
 
const AlgebraicSymMatrixmeasurementErrors () const
 
const AlgebraicVectormeasurements () const
 
int nominalField () const
 
unsigned int numberOfHitMeas () const
 
unsigned int numberOfHits () const
 
unsigned int numberOfPar () const
 
unsigned int numberOfVirtualMeas () const
 
unsigned int numberOfVirtualPar () const
 
const AlgebraicSymMatrixparameterErrors () const
 
bool parameterErrorsAvailable () const
 
const AlgebraicVectorparameters () const
 
const TransientTrackingRecHit::ConstRecHitContainerrecHits () const
 
void setParameterErrors (const AlgebraicSymMatrix &error)
 
const AlgebraicSymMatrixtrajectoryPositionErrors () const
 
const AlgebraicVectortrajectoryPositions () const
 
const std::vector< TrajectoryStateOnSurface > & trajectoryStates () const
 
const AlgebraicMatrixtrajectoryToCurv () const
 
 ~ReferenceTrajectoryBase () override
 

Private Member Functions

bool construct (const TwoBodyDecayTrajectoryState &state, const ConstRecHitCollection &recHits, const MagneticField *field, const reco::BeamSpot &beamSpot)
 
void constructSingleTsosWithErrors (const TrajectoryStateOnSurface &tsos, int iTsos, const MagneticField *field)
 
void constructTsosVecWithErrors (const ReferenceTrajectory &traj1, const ReferenceTrajectory &traj2, const MagneticField *field)
 

Private Attributes

const bool constructTsosWithErrors_
 
const MaterialEffects materialEffects_
 
const PropagationDirection propDir_
 
std::pair< int, int > theNumberOfRecHits
 
const bool useRefittedState_
 

Additional Inherited Members

- Protected Member Functions inherited from ReferenceTrajectoryBase
unsigned int numberOfUsedRecHits (const TransientTrackingRecHit::ConstRecHitContainer &recHits) const
 
 ReferenceTrajectoryBase (unsigned int nPar, unsigned int nHits, unsigned int nVirtualPar, unsigned int nVirtualMeas)
 
bool useRecHit (const TransientTrackingRecHit::ConstRecHitPointer &hitPtr) const
 
- Protected Attributes inherited from ReferenceTrajectoryBase
AlgebraicMatrix theDerivatives
 
Eigen::MatrixXd theGblExtDerivatives
 
Eigen::VectorXd theGblExtMeasurements
 
Eigen::VectorXd theGblExtPrecisions
 
std::vector< std::pair< std::vector< gbl::GblPoint >, Eigen::MatrixXd > > theGblInput
 
AlgebraicMatrix theInnerLocalToTrajectory
 
AlgebraicMatrix theInnerTrajectoryToCurvilinear
 
AlgebraicVector theMeasurements
 
AlgebraicSymMatrix theMeasurementsCov
 
int theNomField
 
unsigned int theNumberOfHits
 
unsigned int theNumberOfPars
 
unsigned int theNumberOfVirtualMeas
 
unsigned int theNumberOfVirtualPars
 
bool theParamCovFlag
 
AlgebraicSymMatrix theParameterCov
 
AlgebraicVector theParameters
 
TransientTrackingRecHit::ConstRecHitContainer theRecHits
 
AlgebraicSymMatrix theTrajectoryPositionCov
 
AlgebraicVector theTrajectoryPositions
 
std::vector< TrajectoryStateOnSurfacetheTsosVec
 
bool theValidityFlag
 
- Static Protected Attributes inherited from ReferenceTrajectoryBase
static unsigned int nMeasPerHit {2}
 

Detailed Description

Definition at line 14 of file TwoBodyDecayTrajectory.h.

Member Typedef Documentation

Definition at line 20 of file TwoBodyDecayTrajectory.h.

Definition at line 19 of file TwoBodyDecayTrajectory.h.

Constructor & Destructor Documentation

TwoBodyDecayTrajectory::TwoBodyDecayTrajectory ( const TwoBodyDecayTrajectoryState tsos,
const ConstRecHitCollection recHits,
const MagneticField magField,
const reco::BeamSpot beamSpot,
const ReferenceTrajectoryBase::Config config 
)

Definition at line 15 of file TwoBodyDecayTrajectory.cc.

References construct(), ReferenceTrajectoryBase::Config::hitsAreReverse, and ReferenceTrajectoryBase::theValidityFlag.

19  :
21  TwoBodyDecayParameters::dimension, recHits.first.size() + recHits.second.size(),
22  (config.materialEffects >= breakPoints) ? 2*(recHits.first.size() + recHits.second.size())-4 : 0,
23  (config.materialEffects >= breakPoints) ? 2*(recHits.first.size() + recHits.second.size())-3 : 1 ),
25  propDir_(config.propDir),
28 
29 {
30  if ( config.hitsAreReverse )
31  {
32  TransientTrackingRecHit::ConstRecHitContainer::const_reverse_iterator itRecHits;
33  ConstRecHitCollection fwdRecHits;
34 
35  fwdRecHits.first.reserve( recHits.first.size() );
36  for ( itRecHits = recHits.first.rbegin(); itRecHits != recHits.first.rend(); ++itRecHits )
37  {
38  fwdRecHits.first.push_back( *itRecHits );
39  }
40 
41  fwdRecHits.second.reserve( recHits.second.size() );
42  for ( itRecHits = recHits.second.rbegin(); itRecHits != recHits.second.rend(); ++itRecHits )
43  {
44  fwdRecHits.second.push_back( *itRecHits );
45  }
46 
47  theValidityFlag = this->construct(tsos, fwdRecHits, magField, beamSpot);
48  }
49  else
50  {
51  theValidityFlag = this->construct(tsos, recHits, magField, beamSpot);
52  }
53 }
bool construct(const TwoBodyDecayTrajectoryState &state, const ConstRecHitCollection &recHits, const MagneticField *field, const reco::BeamSpot &beamSpot)
ReferenceTrajectoryBase(unsigned int nPar, unsigned int nHits, unsigned int nVirtualPar, unsigned int nVirtualMeas)
const TransientTrackingRecHit::ConstRecHitContainer & recHits() const
const PropagationDirection propDir_
std::pair< ConstRecHitContainer, ConstRecHitContainer > ConstRecHitCollection
const MaterialEffects materialEffects_
TwoBodyDecayTrajectory::TwoBodyDecayTrajectory ( void  )

Definition at line 56 of file TwoBodyDecayTrajectory.cc.

57  : ReferenceTrajectoryBase( 0, 0, 0, 0),
60  useRefittedState_(false),
62 {}
ReferenceTrajectoryBase(unsigned int nPar, unsigned int nHits, unsigned int nVirtualPar, unsigned int nVirtualMeas)
const PropagationDirection propDir_
const MaterialEffects materialEffects_
TwoBodyDecayTrajectory::~TwoBodyDecayTrajectory ( void  )
inlineoverride

Definition at line 30 of file TwoBodyDecayTrajectory.h.

30 {}

Member Function Documentation

TwoBodyDecayTrajectory* TwoBodyDecayTrajectory::clone ( void  ) const
inlineoverridevirtual

Implements ReferenceTrajectoryBase.

Definition at line 32 of file TwoBodyDecayTrajectory.h.

33  { return new TwoBodyDecayTrajectory( *this ); }
bool TwoBodyDecayTrajectory::construct ( const TwoBodyDecayTrajectoryState state,
const ConstRecHitCollection recHits,
const MagneticField field,
const reco::BeamSpot beamSpot 
)
private

Definition at line 65 of file TwoBodyDecayTrajectory.cc.

References cuy::col, looper::config, constructTsosVecWithErrors(), constructTsosWithErrors_, TwoBodyDecayParameters::covariance(), TwoBodyDecayTrajectoryState::decayParameters(), TwoBodyDecayTrajectoryState::derivatives(), ReferenceTrajectoryBase::derivatives(), ReferenceTrajectoryBase::gblInput(), ReferenceTrajectoryBase::Config::hitsAreReverse, ReferenceTrajectoryBase::isValid(), ReferenceTrajectoryBase::localGBL, ReferenceTrajectoryBase::localToTrajectory(), ResonanceBuilder::mass, TwoBodyDecayParameters::mass, materialEffects_, ReferenceTrajectoryBase::measurementErrors(), ReferenceTrajectoryBase::measurements(), ReferenceTrajectoryBase::nominalField(), ReferenceTrajectoryBase::numberOfHitMeas(), ReferenceTrajectoryBase::numberOfHits(), ReferenceTrajectoryBase::numberOfPar(), ReferenceTrajectoryBase::numberOfVirtualMeas(), ReferenceTrajectoryBase::numberOfVirtualPar(), TwoBodyDecayParameters::parameters(), TwoBodyDecayTrajectoryState::particleMass(), TwoBodyDecayTrajectoryState::primaryMass(), TwoBodyDecayTrajectoryState::primaryWidth(), propDir_, ReferenceTrajectoryBase::theDerivatives, ReferenceTrajectoryBase::theGblExtDerivatives, ReferenceTrajectoryBase::theGblExtMeasurements, ReferenceTrajectoryBase::theGblExtPrecisions, ReferenceTrajectoryBase::theGblInput, ReferenceTrajectoryBase::theMeasurements, ReferenceTrajectoryBase::theMeasurementsCov, ReferenceTrajectoryBase::theNomField, ReferenceTrajectoryBase::theNumberOfHits, ReferenceTrajectoryBase::theNumberOfPars, theNumberOfRecHits, ReferenceTrajectoryBase::theNumberOfVirtualMeas, ReferenceTrajectoryBase::theNumberOfVirtualPars, ReferenceTrajectoryBase::theParameters, ReferenceTrajectoryBase::theRecHits, ReferenceTrajectoryBase::theTrajectoryPositionCov, ReferenceTrajectoryBase::theTrajectoryPositions, ReferenceTrajectoryBase::theTsosVec, ReferenceTrajectoryBase::trajectoryPositions(), TwoBodyDecayTrajectoryState::trajectoryStates(), ReferenceTrajectoryBase::trajectoryStates(), ReferenceTrajectoryBase::Config::useBeamSpot, and useRefittedState_.

Referenced by TwoBodyDecayTrajectory().

69 {
72  double mass = state.particleMass();
73 
74  //
75  // first track
76  //
77 
78  // construct a trajectory (hits should be already in correct order)
80  config.useBeamSpot = false;
81  config.hitsAreReverse = false;
82 
83  ReferenceTrajectory trajectory1(tsos.first, recHits.first, field, beamSpot, config);
84 
85  // check if construction of trajectory was successful
86  if ( !trajectory1.isValid() ) return false;
87 
88  //
89  // second track
90  //
91 
92  ReferenceTrajectory trajectory2(tsos.second, recHits.second, field, beamSpot, config);
93 
94  if ( !trajectory2.isValid() ) return false;
95 
96  //
97  // combine both tracks
98  //
99  unsigned int nLocal = deriv.first.num_row();
100  unsigned int nTbd = deriv.first.num_col();
101 
102  if (materialEffects_ >= localGBL) {
103  // GBL trajectory inputs
104  // convert to Eigen::MatrixXd
105  Eigen::MatrixXd tbdToLocal1{nLocal, nTbd};
106  for (unsigned int row = 0; row < nLocal; ++row) {
107  for (unsigned int col = 0; col < nTbd; ++col) {
108  tbdToLocal1(row,col) = deriv.first[row][col];
109  }
110  }
111  // add first body
112  theGblInput.push_back(std::make_pair(trajectory1.gblInput().front().first,
113  trajectory1.gblInput().front().second*tbdToLocal1));
114  // convert to Eigen::MatrixXd
115  Eigen::MatrixXd tbdToLocal2{nLocal, nTbd};
116  for (unsigned int row = 0; row < nLocal; ++row) {
117  for (unsigned int col = 0; col < nTbd; ++col) {
118  tbdToLocal2(row,col) = deriv.second[row][col];
119  }
120  }
121  // add second body
122  theGblInput.push_back(std::make_pair(trajectory2.gblInput().front().first,
123  trajectory2.gblInput().front().second*tbdToLocal2));
124  // add virtual mass measurement
125  theGblExtDerivatives.resize(1,nTbd);
126  theGblExtDerivatives.setZero();
128  theGblExtMeasurements.resize(1);
130  theGblExtPrecisions.resize(1);
131  theGblExtPrecisions(0) = 1.0 / (state.primaryWidth() * state.primaryWidth());
132  // nominal field
133  theNomField = trajectory1.nominalField();
134  } else {
135  unsigned int nHitMeas1 = trajectory1.numberOfHitMeas();
136  unsigned int nVirtualMeas1 = trajectory1.numberOfVirtualMeas();
137  unsigned int nPar1 = trajectory1.numberOfPar();
138  unsigned int nVirtualPar1 = trajectory1.numberOfVirtualPar();
139 
140  // derivatives of the trajectory w.r.t. to the decay parameters
141  AlgebraicMatrix fullDeriv1 = trajectory1.derivatives().sub(1,nHitMeas1+nVirtualMeas1,1,nLocal) * trajectory1.localToTrajectory() * deriv.first;
142 
143  unsigned int nHitMeas2 = trajectory2.numberOfHitMeas();
144  unsigned int nVirtualMeas2 = trajectory2.numberOfVirtualMeas();
145  unsigned int nPar2 = trajectory2.numberOfPar();
146  unsigned int nVirtualPar2 = trajectory2.numberOfVirtualPar();
147 
148  AlgebraicMatrix fullDeriv2 = trajectory2.derivatives().sub(1,nHitMeas2+nVirtualMeas2,1,nLocal) * trajectory2.localToTrajectory() * deriv.second;
149 
150  theNumberOfRecHits.first = recHits.first.size();
151  theNumberOfRecHits.second = recHits.second.size();
152 
153  theNumberOfHits = trajectory1.numberOfHits() + trajectory2.numberOfHits();
154  theNumberOfPars = nPar1 + nPar2;
155  theNumberOfVirtualPars = nVirtualPar1 + nVirtualPar2;
156  theNumberOfVirtualMeas = nVirtualMeas1 + nVirtualMeas2 + 1; // add virtual mass measurement
157 
158  // hit measurements from trajectory 1
159  int rowOffset = 1;
160  int colOffset = 1;
161  theDerivatives.sub( rowOffset, colOffset, fullDeriv1.sub( 1, nHitMeas1, 1, nTbd ) );
162  colOffset += nTbd;
163  theDerivatives.sub( rowOffset, colOffset, trajectory1.derivatives().sub( 1, nHitMeas1, nLocal + 1, nPar1 + nVirtualPar1 ) );
164  // hit measurements from trajectory 2
165  rowOffset += nHitMeas1;
166  colOffset = 1;
167  theDerivatives.sub( rowOffset, colOffset, fullDeriv2.sub( 1, nHitMeas2, 1, nTbd ) );
168  colOffset += (nPar1 + nVirtualPar1 + nTbd - nLocal);
169  theDerivatives.sub( rowOffset, colOffset, trajectory2.derivatives().sub( 1, nHitMeas2, nLocal + 1, nPar2 + nVirtualPar2 ) );
170  // MS measurements from trajectory 1
171  rowOffset += nHitMeas2;
172  colOffset = 1;
173  theDerivatives.sub( rowOffset, colOffset, fullDeriv1.sub(nHitMeas1 + 1, nHitMeas1 + nVirtualMeas1, 1, nTbd ) );
174  colOffset += nTbd;
175  theDerivatives.sub( rowOffset, colOffset, trajectory1.derivatives().sub(nHitMeas1 + 1, nHitMeas1 + nVirtualMeas1, nLocal + 1, nPar1 + nVirtualPar1 ) );
176  // MS measurements from trajectory 2
177  rowOffset += nVirtualMeas1;
178  colOffset = 1;
179  theDerivatives.sub( rowOffset, colOffset, fullDeriv2.sub(nHitMeas2 + 1, nHitMeas2 + nVirtualMeas2, 1, nTbd ) );
180  colOffset += (nPar1 + nVirtualPar1 + nTbd - nLocal);
181  theDerivatives.sub( rowOffset, colOffset, trajectory2.derivatives().sub(nHitMeas2 + 1, nHitMeas2 + nVirtualMeas2, nLocal + 1, nPar2 + nVirtualPar2 ) );
182 
183  theMeasurements.sub( 1, trajectory1.measurements().sub( 1, nHitMeas1 ) );
184  theMeasurements.sub( nHitMeas1 + 1, trajectory2.measurements().sub( 1, nHitMeas2 ) );
185  theMeasurements.sub( nHitMeas1 + nHitMeas2 + 1, trajectory1.measurements().sub(nHitMeas1 + 1, nHitMeas1 + nVirtualMeas1 ) );
186  theMeasurements.sub( nHitMeas1 + nHitMeas2 + nVirtualMeas1 + 1, trajectory2.measurements().sub(nHitMeas2 + 1, nHitMeas2 + nVirtualMeas2 ) );
187 
188  theMeasurementsCov.sub( 1, trajectory1.measurementErrors().sub( 1, nHitMeas1 ) );
189  theMeasurementsCov.sub( nHitMeas1 + 1, trajectory2.measurementErrors().sub( 1, nHitMeas2 ) );
190  theMeasurementsCov.sub( nHitMeas1 + nHitMeas2 + 1, trajectory1.measurementErrors().sub(nHitMeas1 + 1, nHitMeas1 + nVirtualMeas1 ) );
191  theMeasurementsCov.sub( nHitMeas1 + nHitMeas2 + nVirtualMeas1 + 1, trajectory2.measurementErrors().sub(nHitMeas2 + 1, nHitMeas2 + nVirtualMeas2 ) );
192 
193  theTrajectoryPositions.sub( 1, trajectory1.trajectoryPositions() );
194  theTrajectoryPositions.sub( nHitMeas1 + 1, trajectory2.trajectoryPositions() );
195 
196  theTrajectoryPositionCov = state.decayParameters().covariance().similarity( theDerivatives.sub(1, nHitMeas1 + nHitMeas2, 1, 9) );
197 
199 
200  // add virtual mass measurement
201  rowOffset += nVirtualMeas2;
202  int indMass = rowOffset-1;
204  theMeasurementsCov[indMass][indMass] = state.primaryWidth() * state.primaryWidth();
206  }
207 
208  theRecHits.insert( theRecHits.end(), recHits.first.begin(), recHits.first.end() );
209  theRecHits.insert( theRecHits.end(), recHits.second.begin(), recHits.second.end() );
210 
212  {
213  constructTsosVecWithErrors( trajectory1, trajectory2, field );
214  }
215  else
216  {
217  theTsosVec.insert( theTsosVec.end(),
218  trajectory1.trajectoryStates().begin(),
219  trajectory1.trajectoryStates().end() );
220 
221  theTsosVec.insert( theTsosVec.end(),
222  trajectory2.trajectoryStates().begin(),
223  trajectory2.trajectoryStates().end() );
224  }
225 
226  return true;
227 }
const AlgebraicVector & parameters(void) const
Get decay parameters.
const TransientTrackingRecHit::ConstRecHitContainer & recHits() const
Definition: config.py:1
const PropagationDirection propDir_
const TsosContainer & trajectoryStates(bool useRefittedState=true) const
config
Definition: looper.py:288
AlgebraicSymMatrix theTrajectoryPositionCov
std::vector< std::pair< std::vector< gbl::GblPoint >, Eigen::MatrixXd > > theGblInput
const Derivatives & derivatives(void) const
CLHEP::HepMatrix AlgebraicMatrix
std::pair< TrajectoryStateOnSurface, TrajectoryStateOnSurface > TsosContainer
const MaterialEffects materialEffects_
std::pair< int, int > theNumberOfRecHits
TransientTrackingRecHit::ConstRecHitContainer theRecHits
AlgebraicSymMatrix theMeasurementsCov
const TwoBodyDecayParameters & decayParameters(void) const
std::pair< AlgebraicMatrix, AlgebraicMatrix > Derivatives
void constructTsosVecWithErrors(const ReferenceTrajectory &traj1, const ReferenceTrajectory &traj2, const MagneticField *field)
const AlgebraicSymMatrix & covariance(void) const
Get error matrix.
col
Definition: cuy.py:1009
std::vector< TrajectoryStateOnSurface > theTsosVec
void TwoBodyDecayTrajectory::constructSingleTsosWithErrors ( const TrajectoryStateOnSurface tsos,
int  iTsos,
const MagneticField field 
)
private

Definition at line 252 of file TwoBodyDecayTrajectory.cc.

References MillePedeFileConverter_cfg::e, TrajectoryStateOnSurface::localParameters(), LocalTrajectoryParameters::momentum(), ReferenceTrajectoryBase::nMeasPerHit, AlCaHLTBitMon_ParallelJobs::p, LocalTrajectoryParameters::signedInverseMomentum(), TrajectoryStateOnSurface::surface(), TrajectoryStateOnSurface::surfaceSide(), ReferenceTrajectoryBase::theTrajectoryPositionCov, ReferenceTrajectoryBase::theTsosVec, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by constructTsosVecWithErrors().

255 {
256  AlgebraicSymMatrix55 localErrors;
257  const double coeff = 1e-2;
258 
259  double invP = tsos.localParameters().signedInverseMomentum();
261 
262  // rough estimate for the errors of q/p, dx/dz and dy/dz, assuming that
263  // sigma(px) = sigma(py) = sigma(pz) = coeff*p.
264  float dpinv = coeff*( fabs(p.x()) + fabs(p.y()) + fabs(p.z()) )*invP*invP;
265  float dxdir = coeff*( fabs(p.x()) + fabs(p.z()) )/p.z()/p.z();
266  float dydir = coeff*( fabs(p.y()) + fabs(p.z()) )/p.z()/p.z();
267  localErrors[0][0] = dpinv*dpinv;
268  localErrors[1][1] = dxdir*dxdir;
269  localErrors[2][2] = dydir*dydir;
270 
271  // exact values for the errors on local x and y
272  localErrors[3][3] = theTrajectoryPositionCov[nMeasPerHit*iTsos][nMeasPerHit*iTsos];
273  localErrors[3][4] = theTrajectoryPositionCov[nMeasPerHit*iTsos][nMeasPerHit*iTsos+1];
274  localErrors[4][4] = theTrajectoryPositionCov[nMeasPerHit*iTsos+1][nMeasPerHit*iTsos+1];
275 
276  // construct tsos with local errors
278  LocalTrajectoryError( localErrors ),
279  tsos.surface(),
280  field,
281  tsos.surfaceSide() );
282 }
const LocalTrajectoryParameters & localParameters() const
T y() const
Definition: PV3DBase.h:63
ROOT::Math::SMatrix< double, 5, 5, ROOT::Math::MatRepSym< double, 5 > > AlgebraicSymMatrix55
float signedInverseMomentum() const
Signed inverse momentum q/p (zero for neutrals).
AlgebraicSymMatrix theTrajectoryPositionCov
const SurfaceType & surface() const
SurfaceSide surfaceSide() const
Position relative to material, defined relative to momentum vector.
T z() const
Definition: PV3DBase.h:64
LocalVector momentum() const
Momentum vector in the local frame.
std::vector< TrajectoryStateOnSurface > theTsosVec
T x() const
Definition: PV3DBase.h:62
void TwoBodyDecayTrajectory::constructTsosVecWithErrors ( const ReferenceTrajectory traj1,
const ReferenceTrajectory traj2,
const MagneticField field 
)
private

Definition at line 230 of file TwoBodyDecayTrajectory.cc.

References constructSingleTsosWithErrors(), and ReferenceTrajectoryBase::trajectoryStates().

Referenced by construct().

233 {
234  int iTsos = 0;
235 
236  std::vector< TrajectoryStateOnSurface >::const_iterator itTsos;
237 
238  for ( itTsos = traj1.trajectoryStates().begin(); itTsos != traj1.trajectoryStates().end(); itTsos++ )
239  {
240  constructSingleTsosWithErrors( *itTsos, iTsos, field );
241  iTsos++;
242  }
243 
244  for ( itTsos = traj2.trajectoryStates().begin(); itTsos != traj2.trajectoryStates().end(); itTsos++ )
245  {
246  constructSingleTsosWithErrors( *itTsos, iTsos, field );
247  iTsos++;
248  }
249 }
void constructSingleTsosWithErrors(const TrajectoryStateOnSurface &tsos, int iTsos, const MagneticField *field)
const std::vector< TrajectoryStateOnSurface > & trajectoryStates() const
const std::pair< int, int > TwoBodyDecayTrajectory::numberOfRecHits ( void  )
inline

Number of RecHits belonging to the first and second track.

Definition at line 37 of file TwoBodyDecayTrajectory.h.

References ecalDrivenElectronSeedsParameters_cff::beamSpot.

37 { return theNumberOfRecHits; }
std::pair< int, int > theNumberOfRecHits

Member Data Documentation

const bool TwoBodyDecayTrajectory::constructTsosWithErrors_
private

Definition at line 57 of file TwoBodyDecayTrajectory.h.

Referenced by construct().

const MaterialEffects TwoBodyDecayTrajectory::materialEffects_
private

Definition at line 54 of file TwoBodyDecayTrajectory.h.

Referenced by construct().

const PropagationDirection TwoBodyDecayTrajectory::propDir_
private

Definition at line 55 of file TwoBodyDecayTrajectory.h.

Referenced by construct().

std::pair< int, int > TwoBodyDecayTrajectory::theNumberOfRecHits
private

Definition at line 59 of file TwoBodyDecayTrajectory.h.

Referenced by construct().

const bool TwoBodyDecayTrajectory::useRefittedState_
private

Definition at line 56 of file TwoBodyDecayTrajectory.h.

Referenced by construct().