- <code>SetDefaultBendingReso(Int_t iCh, Double_t val)</code>: Set the default bending resolution of chamber iCh
- <code>SetMaxTriggerTracks(Int_t val)</code>: Set the maximum number of trigger tracks above which the tracking is cancelled
- <code>SetMaxTrackCandidates(Int_t val)</code>: Set the maximum number of track candidates above which the tracking abort
+- <code>SetManuOccupancyLimits(float low, float high)</code>: Set the limits for the acceptable manu occupancy
+- <code>SetBuspatchOccupancyLimits(float low, float high)</code>: Set the limits for the acceptable bp occupancy
+- <code>SetDEOccupancyLimits(float low, float high)</code>: Set the limits for the acceptable DE occupancy
We can use the method Print("FULL") to printout all the parameters and options set in the class AliMUONRecoParam.
- Tracker track parameters at first cluster
- Tracker track parameter covariances at first cluster
- Tracker track global informations (track ID, chi2, number of clusters, cluster map, MC label if any)
-- TClonesArray of associated clusters stored in AliESDMuonCluster objects
+- Array of Ids of associated clusters (clusters are stored in a separate TClonesArray in ESD)
- Trigger track informations (local trigger decision, strip pattern, hit pattern, ...)
- Chi2 of tracker/trigger track matching
- Charge
- Chi2
- MC label if any
-- TClonesArray of associated pads stored in AliESDMuonPad objects for a given fraction of events
+- Array of IDs of associated pads for a given fraction of events (pads are stored in a separate TClonesArray in ESD)
The AliESDMuonPad objects contain:
- Digit ID providing information about the location of the digit (DE ID, Manu ID, Manu channel and cathode)
\section rec_s6 Conversion between MUON/ESD objects
Every conversion between MUON objects (AliMUONVDigit/AliMUONVCluster/AliMUONTrack) and ESD objects
-(AliESDMuonPad/AliESDMuonCluster/AliESDMuonTrack) is done by the class AliMUONESDInterface. There are 2 ways of using this class:
+(AliESDMuonPad/AliESDMuonCluster/AliESDMuonTrack) is done by the class AliMUONESDInterface.
+
+WARNING: some of these conversions require input from outside, namely the magnetic field map, the geometry, the reconstruction parameters
+and/or the mapping segmentation. In particular:
+- The conversion of ESDPads to MUON digits requires the mapping segmentation.
+- The conversion of a MUON track to an ESD track requires the magnetic field and the geometry to extrapolate the track parameters at vertex
+and compute the correction of multiple scattering and energy loss in the front absorber.
+- While converting an ESD track to a MUON track, the track is refitted by using the cluster position stored in ESD in order to recover the
+track parameters at each cluster. This refitting needs both the magnetic field and the reconstruction parameters initially used to
+reconstruct the tracks to be correct. The reconstruction parameters can be passed to the interface by using the static method
+AliMUONESDTrack::ResetTracker(const AliMUONRecoParam* recoParam, Bool_t info). The refitting can however be disconnected by user (using flag
+in the fonction parameters). In that case, none of these external inputs is necessary anymore but only the track parameters at first cluster,
+which is then copied directly from the ESD, is meaningful.
+
+There are 2 ways of using this class:
1) Using the static methods to convert the objects one by one (and possibly put them into the provided store):
- Get track parameters at vertex, at DCA, ...:
AliMUONESDInterface::MUONToESD(*locTrg, esdTrack, trackId, triggerTrack);
\endverbatim
-- Convert an AliESDMuonTrack to an AliMUONTrack:
+- Convert an AliESDMuonTrack to an AliMUONTrack (the parameters at each clusters are recomputed or not according to the flag "refit".
+if not, only the parameters at first cluster are relevant):
\verbatim
...
AliESDMuonTrack* esdTrack = esd->GetMuonTrack(iTrack);
AliMUONTrack track;
- AliMUONESDInterface::ESDToMUON(*esdTrack, track);
+ AliMUONESDInterface::ESDToMUON(*esdTrack, track, refit);
\endverbatim
-- Add an AliESDMuonTrack (converted into AliMUONTrack object) into an AliMUONVTrackStore:
+- Add an AliESDMuonTrack (converted into AliMUONTrack object) into an AliMUONVTrackStore (same remark as above about the flag "refit"):
\verbatim
...
AliESDMuonTrack* esdTrack = esd->GetMuonTrack(iTrack);
AliMUONVTrackStore *trackStore = AliMUONESDInteface::NewTrackStore();
- AliMUONTrack* trackInStore = AliMUONESDInterface::Add(*esdTrack, *trackStore);
+ AliMUONTrack* trackInStore = AliMUONESDInterface::Add(*esdTrack, *trackStore, refit);
\endverbatim
2) Loading an entire ESDEvent and using the finders and/or the iterators to access the corresponding MUON objects:
\section rec_s7 ESD cluster/track refitting
We can re-clusterize and re-track the clusters/tracks stored into the ESD by using the class AliMUONRefitter. This class gets the MUON objects
-to be refitted from an instance of AliMUONESDInterface (see section @ref rec_s6), then uses the reconstruction framework to refit the
-objects. The reconstruction parameters are still set via the class AliMUONRecoParam (see section @ref rec_s5). The initial data are not changed.
-Results are stored into new MUON objects. The aim of the refitting is to be able to study effects of changing the reconstruction parameter, the
-calibration parameters or the alignment without re-running the entire reconstruction.
+to be refitted from an instance of AliMUONESDInterface (see section @ref rec_s6), then uses the reconstruction framework to refit them. The new
+reconstruction parameters are still set via the class AliMUONRecoParam (see section @ref rec_s4) and passed to refitter through its constructor.
+The old reconstruction parameters, the mapping, the magnetic field and/or the geometry may also be needed to convert the ESD objects to MUON ones
+and/or to refit them. The initial data are not changed. Results are stored into new MUON objects. The aim of the refitting is to be able to
+study effects of changing the reconstruction parameter, the calibration parameters or the alignment without re-running the entire reconstruction.
To use this class we first have to connect it to the ESD interface containing MUON objects:
\verbatim
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff