/MuID status report on behalf of the Moore/MuID group. Status in the releases ( Units Migrations DC1/G3 MuonGeoModel Migration DC2/G4) MuID updates Trig

BNL, 25 May 2004 Status in the releases Moore has completed the units migration in release (MuonDetectorDescription DC1/G3 data) MuID has completed the units migration in release (MuonDetectorDescription DC1/G3 data) Moore has migrated to MuonGeoModel in release Given the fact that MuonGeoModel at present only works for DC2/G4 data, Moore in release can only works on DC2/G4 data. Backward compatibility will soon be restored.

BNL, 25 May 2004 Units Migration Moore has completed the units migration in release To validate the units migration single muons datasets from DC1 have been analysed. The datasets used are under: /castor/cern.ch/atlas/transfer/dc1/roma1 pT=6GeV/c events pT=20GeV/c events pT=100GeV/c events pT=200GeV/c events pT=300GeV/c events pT=500GeV/c events pT=1000GeV/c events

BNL, 25 May 2004 Units Migration Moore Reconstruction efficiency as a function of  Example: Release has been used. Efficiency drop in the  regions was present also in previous releases (partially known problem, and partially under investigation) Nr Reconstructed Tracks P T = 100GeV/c ~ 1. 1/P T resolution P T = 100GeV/c Mean = 1.00 Sigma= 0.045

BNL, 25 May 2004 Units Migration The complete set of results is available under web: The results show a full agreement with previous validation tests performed on DC1 (before the units migration): see for example the validation web page for release version, although the  shows a more evident deterioration that was not present in the previous releases. From a technical point of view during the validation test performed on a set of scripts for running the single muon validation and provide the plots in a reference area has been setup (Nectarios Benekos). A set up of a standard Moore validation web page is foreseen (Nectarios Benekos and Stephane Willocq) as well as the setup of scripts for running on G4 data (DC2).

BNL, 25 May 2004 and the MuonGeoModel Moore has migrated to MuonGeoModel in release Given the fact that MuonGeoModel at present only works for DC2/G4 data, Moore in release can only works on DC2/G4 data. In the following a set of preliminary results is presented, running on a set of 100GeV/c muons simulated with release No treatment for inert material has been taken into account in reconstruction. G. Stavropoulos

BNL, 25 May 2004 running on G4 data Nr Reconstructed Tracks P T = 100GeV/c ~ 1. 1/P T resolution P T = 100GeV/c Mean = 0.97 Sigma= Moore Reconstruction efficiency as a function of  Reconstructed Muon are expressed at the entrance of the MuonSpectrometer (first measured point), while the Generated Muons are expressed at the beam spot. G. Stavropoulos

BNL, 25 May 2004 MuID status The MuonIdentification package has been migrated to new units (migration completed in release) The package has been reorganized (dividing Algorithmical classes and DataEvent classes into subpackages). The main motivation for the reorganization: The work in progress on low energy Muon Identification (Natasha Panikashvili) needed to get into the repository release structure. The old structure containing 27 classes in MuonIdentification made it a rather large package.

BNL, 25 May 2004 MuidTrackCandidate Selection of ID track 1.J/ψ  μ+ μ- 2.μ+ μ- 3.Single μ Output: container of iPatRec candidates MuidDigitTrackAssociation Association of ID tracks with MS digits (Simulated digits, digits from MOORE segments) Output: vector of associated digits for each iPatRec candidate Status: The low pt muon identification algorithm is implemented and it is in the CVS repository The algorithm was tuned at the analysis level and it is now under test in the C++ reconstruction environment. Algorithm outline: iPatRec candidate MDT digits CSC digits RPC digits TGC digits TileCal information Digits from MOORE segments Output example: Status of low pt  identification N. Panikashvili MuidTrackCandidate

BNL, 25 May 2004 TrigMoore is the online version (interface) of Moore. It evolves togheter with the offline packages Moore and MuId and depends on Moore/MuId code/developers. TrigMoore allows the following steps: The reconstruction of tracks in the MuonSpectrometer (Moore) The extrapolation to the interaction Region (MuID standalone) The combination of the tracks with Inner Detector tracks, performing a global refit (MuID combined) TrigMoore can be seeded by: LVL1 Trigger information LVL2 Trigger information (MuonFeature) Trig current status (0) M.Biglietti, G.Cataldi

BNL, 25 May 2004 The full MuonSlice chain: L1  Transient ByteStream   Fast  TrigMoore has been debugged in a release using a project area The code has been migrated under and it is ready for commit/tag. It will be officially included in release. The priority of Moore migration to MuonGeoModel has provoked a broken Moore online package, that will be restored in the following release. Analysis studies on reconstruction performances with single muons sample in presence of cavern background are on-going, in the LVL1 seeded version of Moore (see next slides). The studies use DC1 data. Trig current status (I) M.Biglietti, G.Cataldi

BNL, 25 May 2004 Trig studies(0) M.Primavera, A.Ventura “Seeded” ( by the LVL1 ROIs) version of TrigMOORE applied to reconstruct 100 GeV single muon without and with cavern background addition “nominal” background (x1) or a “safety” factor 5 (x5) Track acceptance cut in |  | < 0.9 (driven by the RPC-LVL1) Rel new LVL1 trigger packages + bug fixed in the code (equivalent to release 7.6.0) LVL1 acceptance in the above h region: #ROI >0, thr#>0 Moore efficiency (track  2 0, thr#>0) No bckx1x5 LVL1 acc    Moore eff    Muid eff    Compare with ~12 track segments/ev in MOORE offline for x5

BNL, 25 May 2004 No bck x5 x1 Pt resolution is slightly worse as bck increases MOORE Pt resolution M.Primavera, A.Ventura

BNL, 25 May 2004 No bck x5 x1 Pt resolution is slightly worse as bck increases MUID Pt resolution M.Primavera, A.Ventura

BNL, 25 May 2004 MOORE: deterioration of the efficiency pt sigma for good reconstructed tracks (i.e. close in eta and phi to the true track) M.Primavera, A.Ventura

BNL, 25 May 2004 Conclusions and Future plans Migration to MuonGeoModel representation for the reconstruction has been accomplished in release Validation of G4 data samples is ongoing. Restoring the functionality for DC1/G3 data will follow (next release) Low pT  algorithm are under test. TrigMoore will be restored in next release, hopefully for boths MuonDetDescr and MuonGeoModel representation.