#include "AliMUONVClusterStore.h"
#include "AliMUONObjectPair.h"
#include "AliMUONTrackExtrap.h"
+#include "AliMUONConstants.h"
+#include "AliMUONTrackParam.h"
#include "AliLog.h"
#include <TMath.h>
-#include <TMatrixD.h>
#include <Riostream.h>
fMatchTrigger(-1),
floTrgNum(-1),
fChi2MatchTrigger(0.),
- fTrackID(0),
+ fTrackID(-1),
fTrackParamAtVertex(0x0),
fHitsPatternInTrigCh(0),
fLocalTrigger(0)
fMatchTrigger(-1),
floTrgNum(-1),
fChi2MatchTrigger(0.),
- fTrackID(0),
+ fTrackID(-1),
fTrackParamAtVertex(0x0),
fHitsPatternInTrigCh(0),
fLocalTrigger(0)
paramCov(3,2) = paramCov(2,3);
paramCov(3,3) = ( firstCluster->GetErrY2() + lastCluster->GetErrY2() ) / dZ / dZ;
// Inverse bending momentum (vertex resolution + bending slope resolution + 10% error on dipole parameters+field)
- paramCov(4,4) = ( ( bendingVertexDispersion*bendingVertexDispersion +
- (z1 * z1 * lastCluster->GetErrY2() + z2 * z2 * firstCluster->GetErrY2()) / dZ / dZ) /
- bendingImpact / bendingImpact + 0.1 * 0.1) * inverseBendingMomentum * inverseBendingMomentum ;
- paramCov(2,4) = - z2 * firstCluster->GetErrY2() * inverseBendingMomentum / bendingImpact / dZ;
- paramCov(4,2) = paramCov(2,4);
- paramCov(3,4) = - (z1 * lastCluster->GetErrY2() + z2 * firstCluster->GetErrY2()) * inverseBendingMomentum / bendingImpact / dZ / dZ;
- paramCov(4,3) = paramCov(3,4);
-
- // Set covariances
+ if (AliMUONTrackExtrap::IsFieldON()) {
+ paramCov(4,4) = ( ( bendingVertexDispersion*bendingVertexDispersion +
+ (z1 * z1 * lastCluster->GetErrY2() + z2 * z2 * firstCluster->GetErrY2()) / dZ / dZ) /
+ bendingImpact / bendingImpact + 0.1 * 0.1) * inverseBendingMomentum * inverseBendingMomentum ;
+ paramCov(2,4) = - z2 * firstCluster->GetErrY2() * inverseBendingMomentum / bendingImpact / dZ;
+ paramCov(4,2) = paramCov(2,4);
+ paramCov(3,4) = - (z1 * lastCluster->GetErrY2() + z2 * firstCluster->GetErrY2()) * inverseBendingMomentum / bendingImpact / dZ / dZ;
+ paramCov(4,3) = paramCov(3,4);
+ } else paramCov(4,4) = inverseBendingMomentum*inverseBendingMomentum;
trackParamAtFirstCluster.SetCovariances(paramCov);
// Compute and set track parameters covariances at last cluster
- paramCov(1,0) = - paramCov(1,0);
- paramCov(0,1) = - paramCov(0,1);
- paramCov(3,2) = - paramCov(3,2);
- paramCov(2,3) = - paramCov(2,3);
- paramCov(2,4) = z1 * lastCluster->GetErrY2() * inverseBendingMomentum / bendingImpact / dZ;
- paramCov(4,2) = paramCov(2,4);
+ // Non bending plane
+ paramCov(0,0) = lastCluster->GetErrX2();
+ paramCov(0,1) = - lastCluster->GetErrX2() / dZ;
+ paramCov(1,0) = paramCov(0,1);
+ // Bending plane
+ paramCov(2,2) = lastCluster->GetErrY2();
+ paramCov(2,3) = - lastCluster->GetErrY2() / dZ;
+ paramCov(3,2) = paramCov(2,3);
+ // Inverse bending momentum (vertex resolution + bending slope resolution + 10% error on dipole parameters+field)
+ if (AliMUONTrackExtrap::IsFieldON()) {
+ paramCov(2,4) = z1 * lastCluster->GetErrY2() * inverseBendingMomentum / bendingImpact / dZ;
+ paramCov(4,2) = paramCov(2,4);
+ }
trackParamAtLastCluster.SetCovariances(paramCov);
// Add track parameters at clusters
fMatchTrigger = -1;
floTrgNum = -1;
fChi2MatchTrigger = 0.;
- fTrackID = 0;
+ fTrackID = -1;
fHitsPatternInTrigCh = 0;
fLocalTrigger = 0;
delete fTrackParamAtCluster; fTrackParamAtCluster = 0x0;
}
//__________________________________________________________________________
-Int_t AliMUONTrack::ClustersInCommon(AliMUONTrack* track, Bool_t inSt345) const
+Int_t AliMUONTrack::ClustersInCommon(AliMUONTrack* track) const
{
/// Returns the number of clusters in common between the current track ("this")
/// and the track pointed to by "track".
- /// If inSt345=kTRUE only stations 3, 4 and 5 are considered.
if (!fTrackParamAtCluster || !this->fTrackParamAtCluster) return 0;
+ Int_t nCluster1 = this->GetNClusters();
+ Int_t nCluster2 = track->GetNClusters();
Int_t clustersInCommon = 0;
AliMUONTrackParam *trackParamAtCluster1, *trackParamAtCluster2;
// Loop over clusters of first track
- trackParamAtCluster1 = (AliMUONTrackParam*) this->fTrackParamAtCluster->First();
- while (trackParamAtCluster1) {
- if ((!inSt345) || (trackParamAtCluster1->GetClusterPtr()->GetChamberId() > 3)) {
- // Loop over clusters of second track
- trackParamAtCluster2 = (AliMUONTrackParam*) track->fTrackParamAtCluster->First();
- while (trackParamAtCluster2) {
- if ((!inSt345) || (trackParamAtCluster2->GetClusterPtr()->GetChamberId() > 3)) {
- // Increment "clustersInCommon" if both trackParamAtCluster1 & 2 point to the same cluster
- if ((trackParamAtCluster1->GetClusterPtr()) == (trackParamAtCluster2->GetClusterPtr())) {
- clustersInCommon++;
- break;
- }
- }
- trackParamAtCluster2 = (AliMUONTrackParam*) track->fTrackParamAtCluster->After(trackParamAtCluster2);
- } // trackParamAtCluster2
+ for(Int_t iCluster1 = 0; iCluster1 < nCluster1; iCluster1++) {
+ trackParamAtCluster1 = (AliMUONTrackParam*) this->fTrackParamAtCluster->UncheckedAt(iCluster1);
+ // Loop over clusters of second track
+ for(Int_t iCluster2 = 0; iCluster2 < nCluster2; iCluster2++) {
+ trackParamAtCluster2 = (AliMUONTrackParam*) track->fTrackParamAtCluster->UncheckedAt(iCluster2);
+ // Increment "clustersInCommon" if both trackParamAtCluster1 & 2 point to the same cluster
+ if ((trackParamAtCluster1->GetClusterPtr()) == (trackParamAtCluster2->GetClusterPtr())) {
+ clustersInCommon++;
+ break;
+ }
}
- trackParamAtCluster1 = (AliMUONTrackParam*) this->fTrackParamAtCluster->After(trackParamAtCluster1);
- } // trackParamAtCluster1
+ }
return clustersInCommon;
}
+ //__________________________________________________________________________
+Int_t AliMUONTrack::ClustersInCommonInSt345(AliMUONTrack* track) const
+{
+ /// Returns the number of clusters in common on stations 3, 4 and 5
+ /// between the current track ("this") and the track pointed to by "track".
+ if (!fTrackParamAtCluster || !this->fTrackParamAtCluster) return 0;
+ Int_t nCluster1 = this->GetNClusters();
+ Int_t nCluster2 = track->GetNClusters();
+ Int_t clustersInCommon = 0;
+ AliMUONTrackParam *trackParamAtCluster1, *trackParamAtCluster2;
+ // Loop over clusters of first track
+ for(Int_t iCluster1 = 0; iCluster1 < nCluster1; iCluster1++) {
+ trackParamAtCluster1 = (AliMUONTrackParam*) this->fTrackParamAtCluster->UncheckedAt(iCluster1);
+ if (trackParamAtCluster1->GetClusterPtr()->GetChamberId() < 4) continue;
+ // Loop over clusters of second track
+ for(Int_t iCluster2 = 0; iCluster2 < nCluster2; iCluster2++) {
+ trackParamAtCluster2 = (AliMUONTrackParam*) track->fTrackParamAtCluster->UncheckedAt(iCluster2);
+ if (trackParamAtCluster2->GetClusterPtr()->GetChamberId() < 4) continue;
+ // Increment "clustersInCommon" if both trackParamAtCluster1 & 2 point to the same cluster
+ if ((trackParamAtCluster1->GetClusterPtr()) == (trackParamAtCluster2->GetClusterPtr())) {
+ clustersInCommon++;
+ break;
+ }
+ }
+ }
+ return clustersInCommon;
+}
+
+ //__________________________________________________________________________
+Int_t AliMUONTrack::GetNDF() const
+{
+ /// return the number of degrees of freedom
+
+ Int_t ndf = 2 * GetNClusters() - 5;
+ return (ndf > 0) ? ndf : 0;
+}
+
//__________________________________________________________________________
Double_t AliMUONTrack::GetNormalizedChi2() const
{
- /// return the chi2 value divided by the number of degrees of freedom (or 1.e10 if ndf < 0)
+ /// return the chi2 value divided by the number of degrees of freedom (or FLT_MAX if ndf <= 0)
- Double_t numberOfDegFree = (2. * GetNClusters() - 5.);
- if (numberOfDegFree > 0.) return fGlobalChi2 / numberOfDegFree;
- else return fGlobalChi2; // system is under-constraint
+ Double_t ndf = (Double_t) GetNDF();
+ return (ndf > 0.) ? fGlobalChi2 / ndf : FLT_MAX;
}
//__________________________________________________________________________
// check DE Id
if (cluster1->GetDetElemId() != cluster2->GetDetElemId()) continue;
- // non bending direction
+ // check local chi2
dX = cluster1->GetX() - cluster2->GetX();
- chi2 = dX * dX / (cluster1->GetErrX2() + cluster2->GetErrX2());
- if (chi2 > chi2Max) continue;
-
- // bending direction
dY = cluster1->GetY() - cluster2->GetY();
- chi2 = dY * dY / (cluster1->GetErrY2() + cluster2->GetErrY2());
- if (chi2 > chi2Max) continue;
+ chi2 = dX * dX / (cluster1->GetErrX2() + cluster2->GetErrX2()) + dY * dY / (cluster1->GetErrY2() + cluster2->GetErrY2());
+ if (chi2 > 2. * chi2Max) continue; // 2 because 2 quantities in chi2
compatibleCluster[cluster1->GetChamberId()] = kTRUE;
nMatchClusters++;
", Match2Trig=" << setw(1) << GetMatchTrigger() <<
", LoTrgNum=" << setw(3) << GetLoTrgNum() <<
", Chi2-tracking-trigger=" << setw(8) << setprecision(5) << GetChi2MatchTrigger();
- cout << Form(" HitTriggerPattern %x",fHitsPatternInTrigCh) << endl;
+ cout << Form(" HitTriggerPattern %x",fHitsPatternInTrigCh);
+ cout << Form(" MClabel=%d",fTrackID) << endl;
if (fTrackParamAtCluster) fTrackParamAtCluster->First()->Print("FULL");
}
}
+//__________________________________________________________________________
+void AliMUONTrack::FindMCLabel()
+{
+ /// Determine the MC label from the label of the attached clusters and fill fMCLabel data member:
+ /// More than 50% of clusters, including 1 before and 1 after the dipole, must share the same label
+
+ Int_t nClusters = GetNClusters();
+ Int_t halfCluster = nClusters/2;
+
+ // reset MC label
+ fTrackID = -1;
+
+ // loop over first clusters (if nClusters left < (nClusters-halfCluster) the conditions cannot be fulfilled)
+ for (Int_t iCluster1 = 0; iCluster1 < nClusters-halfCluster; iCluster1++) {
+ AliMUONVCluster* cluster1 = ((AliMUONTrackParam*) fTrackParamAtCluster->UncheckedAt(iCluster1))->GetClusterPtr();
+
+ // if the first cluster is not on station 1 or 2 the conditions cannot be fulfilled
+ if (cluster1->GetChamberId() > 3) return;
+
+ Int_t label1 = cluster1->GetMCLabel();
+ if (label1 < 0) continue;
+
+ Int_t nIdenticalLabel = 1;
+
+ // Loop over next clusters
+ for (Int_t iCluster2 = iCluster1+1; iCluster2 < nClusters; iCluster2++) {
+ AliMUONVCluster* cluster2 = ((AliMUONTrackParam*) fTrackParamAtCluster->UncheckedAt(iCluster2))->GetClusterPtr();
+
+ if (cluster2->GetMCLabel() != label1) continue;
+
+ nIdenticalLabel++;
+
+ // stop as soon as conditions are fulfilled
+ if (nIdenticalLabel > halfCluster && cluster2->GetChamberId() > 5) {
+ fTrackID = label1;
+ return;
+ }
+
+ }
+
+ }
+
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff