| 1 |
//--------------------------------------------------------------------------------------------------
|
| 2 |
// $Id: Track.h,v 1.43 2009/07/14 13:44:12 bendavid Exp $
|
| 3 |
//
|
| 4 |
// Track
|
| 5 |
//
|
| 6 |
// We store the CMSSW track parameterization
|
| 7 |
// Parameters associated to the 5D curvilinear covariance matrix:
|
| 8 |
// (qoverp, lambda, phi, dxy, dsz)
|
| 9 |
// defined as:
|
| 10 |
// qoverp = q / abs(p) = signed inverse of momentum [1/GeV]
|
| 11 |
// lambda = pi/2 - polar angle at the given point
|
| 12 |
// phi = azimuth angle at the given point
|
| 13 |
// dxy = -vx*sin(phi) + vy*cos(phi) [cm]
|
| 14 |
// dsz = vz*cos(lambda) - (vx*cos(phi)+vy*sin(phi))*sin(lambda) [cm]
|
| 15 |
// (See http://cmslxr.fnal.gov/lxr/source/DataFormats/TrackReco/interface/TrackBase.h)
|
| 16 |
//
|
| 17 |
// Format for fHits: (We do not use anything resembling reco::HitPattern from CMSSW because that
|
| 18 |
// data format requires 800 bits per track!)
|
| 19 |
// There is a one to one mapping between bits and tracker layers, where layers are enumerated
|
| 20 |
// seperately in the PXB, PXF, TIB, TID, TOB, TEC and r-phi and stereo modules are treated as
|
| 21 |
// seperate layers in those detectors which have them
|
| 22 |
// (TIB L1,L2, TID L1,L2,L3, TOB L1,L2, TEC L1,L2,L3,L4,L5,L6,L7,L8,L9).
|
| 23 |
//
|
| 24 |
// A bit value of 1 indicates a hit in the corresponding layer, and 0 indicates no hit.
|
| 25 |
//
|
| 26 |
// Note that currently this only stores information about hits in the Tracker,
|
| 27 |
// but muon chamber information will likely be added as well.
|
| 28 |
//
|
| 29 |
// Bit-Layer assignments (starting from bit 0):
|
| 30 |
// Bit 0: PXB L1
|
| 31 |
// Bit 1: PXB L2
|
| 32 |
// Bit 2: PXB L3
|
| 33 |
// Bit 3: PXF L1
|
| 34 |
// Bit 4: PXF L2
|
| 35 |
// Bit 5: TIB L1 r-phi
|
| 36 |
// Bit 6: TIB L1 stereo
|
| 37 |
// Bit 7: TIB L2 r-phi
|
| 38 |
// Bit 8: TIB L2 stereo
|
| 39 |
// Bit 9: TIB L3 r-phi
|
| 40 |
// Bit 10: TIB L4 r-phi
|
| 41 |
// Bit 11: TID L1 r-phi
|
| 42 |
// Bit 12: TID L1 stereo
|
| 43 |
// Bit 13: TID L2 r-phi
|
| 44 |
// Bit 14: TID L2 stereo
|
| 45 |
// Bit 15: TID L3 r-phi
|
| 46 |
// Bit 16: TID L3 stereo
|
| 47 |
// Bit 17: TOB L1 r-phi
|
| 48 |
// Bit 18: TOB L1 stereo
|
| 49 |
// Bit 19: TOB L2 r-phi
|
| 50 |
// Bit 20: TOB L2 stereo
|
| 51 |
// Bit 21: TOB L3 r-phi
|
| 52 |
// Bit 22: TOB L4 r-phi
|
| 53 |
// Bit 23: TOB L5 r-phi
|
| 54 |
// Bit 24: TOB L6 r-phi
|
| 55 |
// Bit 25: TEC L1 r-phi
|
| 56 |
// Bit 26: TEC L1 stereo
|
| 57 |
// Bit 27: TEC L2 r-phi
|
| 58 |
// Bit 28: TEC L2 stereo
|
| 59 |
// Bit 29: TEC L3 r-phi
|
| 60 |
// Bit 30: TEC L3 stereo
|
| 61 |
// Bit 31: TEC L4 r-phi
|
| 62 |
// Bit 32: TEC L4 stereo
|
| 63 |
// Bit 33: TEC L5 r-phi
|
| 64 |
// Bit 34: TEC L5 stereo
|
| 65 |
// Bit 35: TEC L6 r-phi
|
| 66 |
// Bit 36: TEC L6 stereo
|
| 67 |
// Bit 37: TEC L7 r-phi
|
| 68 |
// Bit 38: TEC L7 stereo
|
| 69 |
// Bit 39: TEC L8 r-phi
|
| 70 |
// Bit 40: TEC L8 stereo
|
| 71 |
// Bit 41: TEC L9 r-phi
|
| 72 |
// Bit 42: TEC L9 stereo
|
| 73 |
//
|
| 74 |
// Authors: C.Loizides, J.Bendavid, C.Paus
|
| 75 |
//--------------------------------------------------------------------------------------------------
|
| 76 |
|
| 77 |
#ifndef MITANA_DATATREE_TRACK_H
|
| 78 |
#define MITANA_DATATREE_TRACK_H
|
| 79 |
|
| 80 |
#include "MitAna/DataCont/interface/BitMask.h"
|
| 81 |
#include "MitAna/DataTree/interface/BaseVertex.h"
|
| 82 |
#include "MitAna/DataTree/interface/DataObject.h"
|
| 83 |
#include "MitAna/DataTree/interface/MCParticle.h"
|
| 84 |
#include "MitAna/DataTree/interface/SuperCluster.h"
|
| 85 |
|
| 86 |
namespace mithep
|
| 87 |
{
|
| 88 |
class Track : public DataObject
|
| 89 |
{
|
| 90 |
public:
|
| 91 |
enum EHitLayer {
|
| 92 |
PXB1,
|
| 93 |
PXB2,
|
| 94 |
PXB3,
|
| 95 |
PXF1,
|
| 96 |
PXF2,
|
| 97 |
TIB1,
|
| 98 |
TIB1S,
|
| 99 |
TIB2,
|
| 100 |
TIB2S,
|
| 101 |
TIB3,
|
| 102 |
TIB4,
|
| 103 |
TID1,
|
| 104 |
TID1S,
|
| 105 |
TID2,
|
| 106 |
TID2S,
|
| 107 |
TID3,
|
| 108 |
TID3S,
|
| 109 |
TOB1,
|
| 110 |
TOB1S,
|
| 111 |
TOB2,
|
| 112 |
TOB2S,
|
| 113 |
TOB3,
|
| 114 |
TOB4,
|
| 115 |
TOB5,
|
| 116 |
TOB6,
|
| 117 |
TEC1,
|
| 118 |
TEC1S,
|
| 119 |
TEC2,
|
| 120 |
TEC2S,
|
| 121 |
TEC3,
|
| 122 |
TEC3S,
|
| 123 |
TEC4,
|
| 124 |
TEC4S,
|
| 125 |
TEC5,
|
| 126 |
TEC5S,
|
| 127 |
TEC6,
|
| 128 |
TEC6S,
|
| 129 |
TEC7,
|
| 130 |
TEC7S,
|
| 131 |
TEC8,
|
| 132 |
TEC8S,
|
| 133 |
TEC9,
|
| 134 |
TEC9S
|
| 135 |
};
|
| 136 |
|
| 137 |
enum ETrackAlgorithm { //taken from DataFormats/TrackReco/interface/TrackBase.h
|
| 138 |
undefAlgorithm=0,
|
| 139 |
ctf=1,
|
| 140 |
rs=2,
|
| 141 |
cosmics=3,
|
| 142 |
iter0=4,
|
| 143 |
iter1=5,
|
| 144 |
iter2=6,
|
| 145 |
iter3=7,
|
| 146 |
iter4=8,
|
| 147 |
iter5=9,
|
| 148 |
iter6=10,
|
| 149 |
iter7=11,
|
| 150 |
iter8=12,
|
| 151 |
iter9=13,
|
| 152 |
iter10=14,
|
| 153 |
outInEcalSeededConv=15,
|
| 154 |
inOutEcalSeededConv=16,
|
| 155 |
nuclInter=17,
|
| 156 |
standAloneMuon=18,
|
| 157 |
globalMuon=19,
|
| 158 |
cosmicStandAloneMuon=20,
|
| 159 |
cosmicGlobalMuon=21,
|
| 160 |
iter1LargeD0=22,
|
| 161 |
iter2LargeD0=23,
|
| 162 |
iter3LargeD0=24,
|
| 163 |
iter4LargeD0=25,
|
| 164 |
iter5LargeD0=26,
|
| 165 |
bTagGhostTracks=27,
|
| 166 |
beamhalo=28,
|
| 167 |
algoSize=29
|
| 168 |
};
|
| 169 |
|
| 170 |
|
| 171 |
Track() : fAlgo(undefAlgorithm), fIsGsf(0), fQOverP(0), fQOverPErr(0),
|
| 172 |
fLambda(0), fLambdaErr(0), fPhi0(0), fPhi0Err(0),
|
| 173 |
fDxy(0), fDxyErr(0), fDsz(0), fDszErr(0), fChi2(0),
|
| 174 |
fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
|
| 175 |
Track(Double_t qOverP, Double_t lambda, Double_t phi0, Double_t dxy, Double_t dsz) :
|
| 176 |
fAlgo(undefAlgorithm), fIsGsf(0), fQOverP(qOverP), fQOverPErr(0),
|
| 177 |
fLambda(lambda), fLambdaErr(0), fPhi0(phi0), fPhi0Err(0),
|
| 178 |
fDxy(dxy), fDxyErr(0), fDsz(dsz), fDszErr(0), fChi2(0),
|
| 179 |
fNdof(0), fEtaEcal(0), fPhiEcal(0) {}
|
| 180 |
~Track() {}
|
| 181 |
|
| 182 |
ETrackAlgorithm Algo() const { return fAlgo; }
|
| 183 |
Int_t Charge() const { return (fQOverP>0) ? 1 : -1; }
|
| 184 |
Double_t Chi2() const { return fChi2; }
|
| 185 |
void ClearHit(EHitLayer l) { fHits.ClearBit(l); }
|
| 186 |
Double_t D0() const { return -fDxy; }
|
| 187 |
Double_t D0Corrected(const BaseVertex &iVertex) const;
|
| 188 |
Double_t D0Err() const { return fDxyErr; }
|
| 189 |
Double_t Dsz() const { return fDsz; }
|
| 190 |
Double_t DszErr() const { return fDszErr; }
|
| 191 |
Double_t Dxy() const { return fDxy; }
|
| 192 |
Double_t DxyErr() const { return fDxyErr; }
|
| 193 |
Double_t E(Double_t m) const { return TMath::Sqrt(E2(m)); }
|
| 194 |
Double_t E2(Double_t m) const { return P2()+m*m; }
|
| 195 |
Double_t Eta() const { return Mom().Eta(); }
|
| 196 |
Double_t EtaEcal() const { return fEtaEcal; }
|
| 197 |
Bool_t Hit(EHitLayer l) const { return fHits.TestBit(l); }
|
| 198 |
const BitMask48 &Hits() const { return fHits; }
|
| 199 |
Bool_t IsGsf() const { return fIsGsf; }
|
| 200 |
Double_t Lambda() const { return fLambda; }
|
| 201 |
Double_t LambdaErr() const { return fLambdaErr; }
|
| 202 |
const MCParticle *MCPart() const { return fMCParticleRef.Obj(); }
|
| 203 |
const ThreeVectorC &Mom() const;
|
| 204 |
FourVectorM Mom4(Double_t m) const { return FourVectorM(Pt(),Eta(),Phi(),m); }
|
| 205 |
UShort_t Ndof() const { return fNdof; }
|
| 206 |
UInt_t NHits() const { return fHits.NBitsSet(); }
|
| 207 |
UInt_t NStereoHits() const { return StereoHits().NBitsSet(); }
|
| 208 |
EObjType ObjType() const { return kTrack; }
|
| 209 |
Double_t P2() const { return 1./fQOverP/fQOverP; }
|
| 210 |
Double_t P() const { return TMath::Abs(1./fQOverP); }
|
| 211 |
Double_t Phi() const { return fPhi0; }
|
| 212 |
Double_t Phi0() const { return fPhi0; }
|
| 213 |
Double_t Phi0Err() const { return fPhi0Err; }
|
| 214 |
Double_t PhiEcal() const { return fPhiEcal; }
|
| 215 |
Double_t Prob() const { return TMath::Prob(fChi2,fNdof); }
|
| 216 |
Double_t Pt() const { return Mom().Rho(); }
|
| 217 |
Double_t Px() const { return Mom().X(); }
|
| 218 |
Double_t Py() const { return Mom().Y(); }
|
| 219 |
Double_t Pz() const { return Mom().Z(); }
|
| 220 |
Double_t QOverP() const { return fQOverP; }
|
| 221 |
Double_t QOverPErr() const { return fQOverPErr; }
|
| 222 |
Double_t RChi2() const { return fChi2/(Double_t)fNdof; }
|
| 223 |
Double_t Theta() const { return (TMath::PiOver2() - fLambda); }
|
| 224 |
const SuperCluster *SCluster() const { return fSuperClusterRef.Obj(); }
|
| 225 |
const BitMask48 StereoHits() const { return (fHits & StereoLayers()); }
|
| 226 |
void SetAlgo(ETrackAlgorithm e) { fAlgo = e; }
|
| 227 |
void SetChi2(Double_t chi2) { fChi2 = chi2; }
|
| 228 |
void SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
|
| 229 |
Double_t dXyErr, Double_t dSzErr);
|
| 230 |
void SetEtaEcal(Double_t eta) { fEtaEcal = eta; }
|
| 231 |
void SetHelix (Double_t qOverP, Double_t lambda, Double_t phi0,
|
| 232 |
Double_t dXy, Double_t dSz);
|
| 233 |
void SetHit(EHitLayer l) { fHits.SetBit(l); }
|
| 234 |
void SetHits(const BitMask48 &hits) { fHits = hits; }
|
| 235 |
void SetIsGsf(Bool_t b) { fIsGsf = b; }
|
| 236 |
void SetNdof(UShort_t dof) { fNdof = dof; }
|
| 237 |
void SetMCPart(const MCParticle *p) { fMCParticleRef = p; }
|
| 238 |
void SetPhiEcal(Double_t phi) { fPhiEcal = phi; }
|
| 239 |
void SetSCluster(const SuperCluster* sc) { fSuperClusterRef = sc; }
|
| 240 |
Double_t Z0() const { return fDsz/TMath::Cos(fLambda); }
|
| 241 |
|
| 242 |
static
|
| 243 |
const BitMask48 StereoLayers();
|
| 244 |
|
| 245 |
protected:
|
| 246 |
void ClearMom() const { fCacheMomFlag.ClearCache(); }
|
| 247 |
void GetMom() const;
|
| 248 |
|
| 249 |
BitMask48 fHits; //storage for mostly hit information
|
| 250 |
ETrackAlgorithm fAlgo; //track algorithm
|
| 251 |
Bool_t fIsGsf; //flag to identify gsf tracks
|
| 252 |
Double32_t fQOverP; //[0,0,14]signed inverse of momentum [1/GeV]
|
| 253 |
Double32_t fQOverPErr; //[0,0,14]error of q/p
|
| 254 |
Double32_t fLambda; //[0,0,14]pi/2 - polar angle at the reference point
|
| 255 |
Double32_t fLambdaErr; //[0,0,14]error of lambda
|
| 256 |
Double32_t fPhi0; //[0,0,14]azimuth angle at the given point
|
| 257 |
Double32_t fPhi0Err; //[0,0,14]error of azimuthal angle
|
| 258 |
Double32_t fDxy; //[0,0,14]trans. distance to reference point [cm]
|
| 259 |
Double32_t fDxyErr; //[0,0,14]error of transverse distance
|
| 260 |
Double32_t fDsz; //[0,0,14]long. distance to reference point [cm]
|
| 261 |
Double32_t fDszErr; //[0,0,14]error of longitudinal distance
|
| 262 |
Double32_t fChi2; //[0,0,12]chi squared of track fit
|
| 263 |
UShort_t fNdof; //degree-of-freedom of track fit
|
| 264 |
Double32_t fEtaEcal; //[0,0,12]eta of track at Ecal front face
|
| 265 |
Double32_t fPhiEcal; //[0,0,12]phi of track at Ecal front face
|
| 266 |
Ref<SuperCluster> fSuperClusterRef; //superCluster crossed by track
|
| 267 |
Ref<MCParticle> fMCParticleRef; //reference to sim particle (for monte carlo)
|
| 268 |
mutable CacheFlag fCacheMomFlag; //||cache validity flag for momentum
|
| 269 |
mutable ThreeVectorC fCachedMom; //!cached momentum vector
|
| 270 |
|
| 271 |
ClassDef(Track, 2) // Track class
|
| 272 |
};
|
| 273 |
}
|
| 274 |
|
| 275 |
//--------------------------------------------------------------------------------------------------
|
| 276 |
inline void mithep::Track::GetMom() const
|
| 277 |
{
|
| 278 |
// Compute three momentum.
|
| 279 |
|
| 280 |
Double_t pt = TMath::Abs(TMath::Cos(fLambda)/fQOverP);
|
| 281 |
Double_t eta = - TMath::Log(TMath::Tan(Theta()/2.));
|
| 282 |
fCachedMom.SetCoordinates(pt,eta,Phi());
|
| 283 |
}
|
| 284 |
|
| 285 |
//--------------------------------------------------------------------------------------------------
|
| 286 |
inline const mithep::ThreeVectorC &mithep::Track::Mom() const
|
| 287 |
{
|
| 288 |
// Return cached momentum value.
|
| 289 |
|
| 290 |
if (!fCacheMomFlag.IsValid()) {
|
| 291 |
GetMom();
|
| 292 |
fCacheMomFlag.SetValid();
|
| 293 |
}
|
| 294 |
return fCachedMom;
|
| 295 |
}
|
| 296 |
|
| 297 |
//--------------------------------------------------------------------------------------------------
|
| 298 |
inline Double_t mithep::Track::D0Corrected(const BaseVertex &iVertex) const
|
| 299 |
{
|
| 300 |
// Return corrected d0 with respect to primary vertex or beamspot.
|
| 301 |
|
| 302 |
Double_t lXM = -TMath::Sin(Phi()) * D0();
|
| 303 |
Double_t lYM = TMath::Cos(Phi()) * D0();
|
| 304 |
Double_t lDX = (lXM + iVertex.X());
|
| 305 |
Double_t lDY = (lYM + iVertex.Y());
|
| 306 |
Double_t d0Corr = (Px()*lDY - Py()*lDX)/Pt();
|
| 307 |
|
| 308 |
return d0Corr;
|
| 309 |
}
|
| 310 |
|
| 311 |
//--------------------------------------------------------------------------------------------------
|
| 312 |
inline void mithep::Track::SetHelix(Double_t qOverP, Double_t lambda, Double_t phi0,
|
| 313 |
Double_t dxy, Double_t dsz)
|
| 314 |
{
|
| 315 |
// Set helix parameters.
|
| 316 |
|
| 317 |
fQOverP = qOverP;
|
| 318 |
fLambda = lambda;
|
| 319 |
fPhi0 = phi0;
|
| 320 |
fDxy = dxy;
|
| 321 |
fDsz = dsz;
|
| 322 |
ClearMom();
|
| 323 |
}
|
| 324 |
|
| 325 |
//--------------------------------------------------------------------------------------------------
|
| 326 |
inline void mithep::Track::SetErrors(Double_t qOverPErr, Double_t lambdaErr, Double_t phi0Err,
|
| 327 |
Double_t dxyErr, Double_t dszErr)
|
| 328 |
{
|
| 329 |
// Set helix errors.
|
| 330 |
|
| 331 |
fQOverPErr = qOverPErr;
|
| 332 |
fLambdaErr = lambdaErr;
|
| 333 |
fPhi0Err = phi0Err;
|
| 334 |
fDxyErr = dxyErr;
|
| 335 |
fDszErr = dszErr;
|
| 336 |
}
|
| 337 |
|
| 338 |
//--------------------------------------------------------------------------------------------------
|
| 339 |
inline const mithep::BitMask48 mithep::Track::StereoLayers()
|
| 340 |
{
|
| 341 |
// Build and return BitMask of stereo layers.
|
| 342 |
|
| 343 |
mithep::BitMask48 stereoLayers;
|
| 344 |
stereoLayers.SetBit(mithep::Track::TIB1S);
|
| 345 |
stereoLayers.SetBit(mithep::Track::TIB2S);
|
| 346 |
stereoLayers.SetBit(mithep::Track::TID1S);
|
| 347 |
stereoLayers.SetBit(mithep::Track::TID2S);
|
| 348 |
stereoLayers.SetBit(mithep::Track::TID3S);
|
| 349 |
stereoLayers.SetBit(mithep::Track::TOB1S);
|
| 350 |
stereoLayers.SetBit(mithep::Track::TOB2S);
|
| 351 |
stereoLayers.SetBit(mithep::Track::TEC1S);
|
| 352 |
stereoLayers.SetBit(mithep::Track::TEC2S);
|
| 353 |
stereoLayers.SetBit(mithep::Track::TEC3S);
|
| 354 |
stereoLayers.SetBit(mithep::Track::TEC4S);
|
| 355 |
stereoLayers.SetBit(mithep::Track::TEC5S);
|
| 356 |
stereoLayers.SetBit(mithep::Track::TEC6S);
|
| 357 |
stereoLayers.SetBit(mithep::Track::TEC7S);
|
| 358 |
stereoLayers.SetBit(mithep::Track::TEC8S);
|
| 359 |
stereoLayers.SetBit(mithep::Track::TEC9S);
|
| 360 |
return stereoLayers;
|
| 361 |
}
|
| 362 |
#endif
|
