muon offline status
DESCRIPTION
Ginés MARTINEZ Subatech, Nantes Alice Offline Week (28 June-2 July 2004). Muon Offline Status. Outlook. MonteCarlo and Response Function Geometry & Alignment Reconstruction & Event Data Summary I/O & DataLinks objects DAQ & RawData & HLT &Mapping & Calibration ESD analysis - PowerPoint PPT PresentationTRANSCRIPT
1Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Muon Offline Status
Ginés MARTINEZ Subatech, Nantes
Alice Offline Week (28 June-2 July 2004)
2Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Outlook
● MonteCarlo and Response Function● Geometry & Alignment● Reconstruction & Event Data Summary● I/O & DataLinks objects● DAQ & RawData & HLT &Mapping &
Calibration● ESD analysis● The other GMS
3Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Response function
● Realistic simulation of the CPC efficiency due to non-gaussian tail (~2%) from SPS data (to do list and nobody here).
● Effect of the magnetic field on the reponse function: pad mutiplicity, spatial shift, ... (nobody here).
4Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Geometry Unique definition of the
MUON geometry. Envelop method from
Ivana Hrivnacova. Global Interface for MUON
Geometry. 3D positionning of
chambers. Aligment with physics (in
the to do list). Geometry in/for
segmentation & reconstruction (to do list)..
Ph.D E.Dumonteil Sep 04
5Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Reconstruction & ESD
● Updating the new clusterizer algorithm (better invariant mass resolution at background level 2)
● Updating the Kalman filter for tracking .● In the to do list and to be done by Alexander
Zinchenko during his 6 month stay @ Subatech end of this year.
● MUON adapted to the new reconstruction and simulation framework. MUON are in ESD, AoD underdevelopment. Splitting the code in sim, common and reconstruction.
6Gines Martinez Alice-Offline Week 28 June – 2 Juillet
I/O and MUON Data ● New I/O ready
– galice.root (smal size) conected to Kinematics#.root, TrackRef#.root, MUON.Hits#.root, MUONS.SDigits.root, MUON.Digits.root, MUON.RecPoints#.root, MUON.Track#.root, AliESD.root
● New Sdigit level for merging.● MUON data structure slightly modified and
managed by the class AliMUONData and AliMUONDataInterface.
● New data link objects to come soon (in the to do list, Artur and Bruce workingon this subject)
7Gines Martinez Alice-Offline Week 28 June – 2 Juillet
RAWDATA & Calibration & Mapping & HLT
● MUON rawdata format to be defined (Alicenote). Generation of rawdata from Digits needed for HLT developments (in progress).
● Mapping framework to be developped. Clever mapping modularity : sectors, PCB, slats, trigger chambers, buses, cathodes, chambers, stations etc ... Important for calibration, channel disable, mapping evolution, etc ... Alice technical note in preparation.
● Starting to think about calibrating one million of channels.
8Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Off-line cartoon
MonteCarlo
Geometry
Response function
PhysicsGenerators
ALICEExperiment
RawData
DigitsSDigits
MergingNoise ...
ReconstructionClusterisation,
Trigger, Tracking
RecPoints Tracks
Sdigits Central HIJING
Real Data
ESDTracks in
ALICE
AOD
PWGAnalysis
ESDAnalysis
VertexCentral Barrel
ZDC ...
HLT
ESD
Storaged MUON Data (I/O)
Bgk data
Kinematics
TrackRef
Alignment
Hits
Calibration
Mapping &Segmentation
9Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Geometry information
Geometry:●Global2Local●Local2Global●IdDetectionElement
MC SimulationDigitalisation
Reconstruction:Clusterisation + tracking
Geometry Config:●14 envelops for chambers●226 envelops for detection elements
Alignment with tracking
GMS
10Gines Martinez Alice-Offline Week 28 June – 2 Juillet
GeometryGeometry Config:●14 envelops for detections planes● 226 envelops for detection elements (sector, slats, trigger chambers)● Absolut Id for each detection element.● Geometry config file will be generated by aliroot (expected position of detection elements), Alignment code (with and without magnetic field, and the Geometry Monitoring System.
Geometry Methods:● GlobalToLocal● LocalToGlobal● New data members in AliMUONHit and AliMUONDigit IdDetectionElement , IdSegment
11Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Detection Planes
12Gines Martinez Alice-Offline Week 28 June – 2 Juillet
St1 & St2
13Gines Martinez Alice-Offline Week 28 June – 2 Juillet
ST345
14Gines Martinez Alice-Offline Week 28 June – 2 Juillet
Conclusions● Geometry configuration and framework
● RawData structure v0 for MUON and generation of from Digits for HLT studies. RawData definition (alice technical note)
● Framework for mapping and segmentation (alice tehcnical note in preparation). To be coded from sep04.
● Dimuon Net workshop in Clermont December 13th-15th, Physics of heavy flavors.
● Next dimuon net workshop in Nantes May-04, devoted to software developments.
● Muon offline manpower is critical
● Linux and linux