#include "AliRun.h" // for gAlice
#include "AliLog.h"
+/// \cond CLASSIMP
ClassImp(AliMUONSegment) // Class implementation in ROOT context
+/// \endcond
//__________________________________________________________________________
AliMUONSegment::AliMUONSegment()
fZ(0.),
fInTrack(kFALSE)
{
- // Default constructor
+ /// Default constructor
}
fZ(Hit1->GetZ()),
fInTrack(kFALSE)
{
- // Constructor for AliMUONSegment from two HitForRec's,
- // one, in the first chamber of the station, pointed to by "Hit1",
- // the other one, in the second chamber of the station, pointed to by "Hit1".
- // Fills the pointers to both hits,
- // the slope, the covariance for (coordinate in first chamber, slope),
- // and the impact parameter at vertex (Z=0),
- // in bending and non bending planes.
- // Puts the "fInTrack" flag to "kFALSE".
+ /// Constructor for AliMUONSegment from two HitForRec's,
+ /// one, in the first chamber of the station, pointed to by "Hit1",
+ /// the other one, in the second chamber of the station, pointed to by "Hit1".
+ /// Fills the pointers to both hits,
+ /// the slope, the covariance for (coordinate in first chamber, slope),
+ /// and the impact parameter at vertex (Z=0),
+ /// in bending and non bending planes.
+ /// Puts the "fInTrack" flag to "kFALSE".
+
Double_t dz;
dz = Hit1->GetZ() - Hit2->GetZ();
//__________________________________________________________________________
Int_t AliMUONSegment::Compare(const TObject* Segment) const
{
- // "Compare" function to sort with increasing absolute value
- // of the "impact parameter" in bending plane.
- // Returns -1 (0, +1) if |impact parameter| of current Segment
- // is smaller than (equal to, larger than) |impact parameter| of Segment
+ /// "Compare" function to sort with increasing absolute value
+ /// of the "impact parameter" in bending plane.
+ /// Returns -1 (0, +1) if |impact parameter| of current Segment
+ /// is smaller than (equal to, larger than) |impact parameter| of Segment
+
if (TMath::Abs(((AliMUONSegment*)this)->fBendingImpact)
< TMath::Abs(((AliMUONSegment*)Segment)->fBendingImpact))
return(-1);
//__________________________________________________________________________
Double_t AliMUONSegment::NormalizedChi2WithSegment(AliMUONSegment* Segment, Double_t Sigma2Cut) const
{
- // Calculate the normalized Chi2 between the current Segment (this)
- // and the Segment pointed to by "Segment",
- // i.e. the square deviations between the coordinates and the slopes,
- // in both the bending and the non bending plane,
- // divided by the variance of the same quantities and by "Sigma2Cut".
- // Returns 5 if none of the 4 quantities is OK,
- // something smaller than or equal to 4 otherwise.
- // Would it be more correct to use a real chi square
- // including the non diagonal term ????
+ /// Calculate the normalized Chi2 between the current Segment (this)
+ /// and the Segment pointed to by "Segment",
+ /// i.e. the square deviations between the coordinates and the slopes,
+ /// in both the bending and the non bending plane,
+ /// divided by the variance of the same quantities and by "Sigma2Cut".
+ /// Returns 5 if none of the 4 quantities is OK,
+ /// something smaller than or equal to 4 otherwise.
+ /// Would it be more correct to use a real chi square
+ /// including the non diagonal term ????
+
Double_t chi2, chi2Max, diff, normDiff;
chi2 = 0.0;
chi2Max = 5.0;
//__________________________________________________________________________
AliMUONSegment* AliMUONSegment::CreateSegmentFromLinearExtrapToStation ( Double_t z, Double_t MCSfactor) const
{
- // Extrapolates linearly the current Segment (this) to station (0..) "Station".
- // Multiple Coulomb scattering calculated from "MCSfactor"
- // corresponding to one chamber,
- // with one chamber for the coordinate, two chambers for the angle,
- // due to the arrangement in stations.
- // Valid from station(1..) 4 to 5 or vice versa.
- // Returns the pointer to the created AliMUONSegment object
- // corresponding to this extrapolation.
- // The caller has the responsibility to delete this object.
+ /// Extrapolates linearly the current Segment (this) to station (0..) "Station".
+ /// Multiple Coulomb scattering calculated from "MCSfactor"
+ /// corresponding to one chamber,
+ /// with one chamber for the coordinate, two chambers for the angle,
+ /// due to the arrangement in stations.
+ /// Valid from station(1..) 4 to 5 or vice versa.
+ /// Returns the pointer to the created AliMUONSegment object
+ /// corresponding to this extrapolation.
+ /// The caller has the responsibility to delete this object.
+
AliMUONSegment* extrapSegment = new AliMUONSegment(); // creates empty new segment
// dZ from first hit of current Segment to first chamber of station "Station"
Double_t dZ = z - this->GetZ();
//__________________________________________________________________________
AliMUONHitForRec* AliMUONSegment::CreateHitForRecFromLinearExtrapToChamber ( Double_t z, Double_t MCSfactor) const
{
- // Extrapolates linearly the current Segment (this) to chamber(0..) "Chamber".
- // Multiple Coulomb scattering calculated from "MCSfactor"
- // corresponding to one chamber.
- // Valid from station(1..) 4 to 5 or vice versa.
- // Returns the pointer to the created AliMUONHitForRec object
- // corresponding to this extrapolation.
- // The caller has the responsibility to delete this object.
+ /// Extrapolates linearly the current Segment (this) to chamber(0..) "Chamber".
+ /// Multiple Coulomb scattering calculated from "MCSfactor"
+ /// corresponding to one chamber.
+ /// Valid from station(1..) 4 to 5 or vice versa.
+ /// Returns the pointer to the created AliMUONHitForRec object
+ /// corresponding to this extrapolation.
+ /// The caller has the responsibility to delete this object.
+
AliMUONHitForRec* extrapHitForRec = new AliMUONHitForRec(); // creates empty new HitForRec
// dZ from first hit of current Segment to chamber
Double_t dZ = z - this->GetZ();
//__________________________________________________________________________
void AliMUONSegment::UpdateFromStationTrackParam(AliMUONTrackParam *TrackParam, Double_t /*MCSfactor*/, Double_t /*Dz1*/, Double_t /*Dz2*/, Double_t /*Dz3*/, Int_t Station, Double_t InverseMomentum)
{
- // Fill data members with values calculated from the array of track parameters
- // pointed to by "TrackParam" (index = 0 and 1 for first and second chambers
- // of the station, respectively).
- // Multiple Coulomb scattering is taking into account with "MCSfactor"
- // corresponding to one chamber,
- // with one chamber for the coordinate, two chambers for the angle,
- // due to the arrangement in stations.
- // Resolution coming from:
- // coordinate in closest station at "Dz1" from current "Station",
- // slope between closest stations, with "Dz2" interval between them,
- // interval "Dz3" between chambers of closest station,
- // extrapolation over "Dz1" from closest station,
- // "InverseMomentum".
- // When called, "fBendingCoorReso2" and "fNonBendingCoorReso2"
- // are assumed to be filled
- // with the variance on bending and non bending coordinates.
- // The "road" is parametrized from the old reco_muon.F
- // with 8 cm between stations.
+ /// Fill data members with values calculated from the array of track parameters
+ /// pointed to by "TrackParam" (index = 0 and 1 for first and second chambers
+ /// of the station, respectively).
+ /// Multiple Coulomb scattering is taking into account with "MCSfactor"
+ /// corresponding to one chamber,
+ /// with one chamber for the coordinate, two chambers for the angle,
+ /// due to the arrangement in stations.
+ /// Resolution coming from:
+ /// coordinate in closest station at "Dz1" from current "Station",
+ /// slope between closest stations, with "Dz2" interval between them,
+ /// interval "Dz3" between chambers of closest station,
+ /// extrapolation over "Dz1" from closest station,
+ /// "InverseMomentum".
+ /// When called, "fBendingCoorReso2" and "fNonBendingCoorReso2"
+ /// are assumed to be filled
+ /// with the variance on bending and non bending coordinates.
+ /// The "road" is parametrized from the old reco_muon.F
+ /// with 8 cm between stations.
+
AliMUONTrackParam *param0;
// Double_t cReso2, sReso2;
// parameters to define the widths of the searching roads in station 0,1,2
void
AliMUONSegment::Print(Option_t*) const
{
- // Printing
+ /// Printing
cout.precision(5);
cout.width(5);
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff