L3 Muon status

1
L3 Muon status

• Paul Balm
• collaboration meeting, Oct 2000

2
Outline

• L3Display
• Online testing of muon unpacking
• Quick review of tool status

3
L3Display

• Currently no tools available for displaying tool
  results
• Based on d0ve
• d0ve D0 Visualization Environment
• wireframe display, designed for debugging
  reconstruction code
• Runs as offline framework package
• Extensively documented
• (see d0ve/doc area)

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Example of a display
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Using L3Display

• Example d0ve_muon
• muo_segmentreco, muo_trackreco must have run
• d0ve_muon displays information in
  SimMUONHitChunk, MuoSegmentChunk, MuoTrackChunk
• d0ve_l3
• tools must have written DebugInfo in the Event
• d0ve_l3 displays data in DebugChunk

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Using L3Display (2)

• Data is displayed by adding its Rep to the
  DisplayList
• There are only few Reps for L3 data types
• L3TrackRep, MuoTrackRep, L3ZRegionRep
• If youd want to use the L3Display for other
  data, youll have to write a Rep
• extensive documentation is available
• Classes will live in package d0ve_l3
• currently everything in package l3mutest
• Still in debugging stage - release planned for
  end of October

7
Testing muon unpackingonline

• Scintillator data from cosmics
• 3 crates
• What did L3 do
• First time actual look at data!
• unpacking hit reconstruction
• Pass/reject based on hits in event
• Test was successful
• some events rejected (no hits- only in trigger
  crate)
• some events successfully sent to Collector/Router

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Online tests remaining

• Repeat this test for PDT data
• currently there is a problem of synchronization
• no idea when this is fixed (being worked on)
• then we can also try our tracking
• Sync bits were not tested on in last weeks test
• that test must be put in the code (MF)
• Coincidence filter

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Requests for muon commissioning

• Coincidence filter
• Pass if there is coincidence between specific
  scintillators
• will greatly reduce noise (now gt90 noise!)
• Implementation
• using the run config only will be too coarse
• will need RCP config - need to think
• how to list all scintillators in RCP
• how to discriminate internally in filter
• finding the time to do it is a problem

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Review of tool status

• Unpacking - L3TMuoUnpack
• online test successful - other tests to be done
• DebugInfo needs to be implemented
• Other tools
• L3TMuoLocal, L3TMuoCentralMatch
• first versions in CVS
• need verification/debugging
• DebugInfo
• debugging is waiting for display

11
Review of tool status (2)

• Tracking in calorimeter
• work has started first version of interface
  defined, scope design of tools decided
• ready within two weeks
• Scintillator tool
• planned for preco6
• scintillator matching in segmentreco required
  before work can even start!
• Global muon tool L3TMuon
• MuonPhysicsResults needs review

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Conclusions

• L3Display
• d0ve based event display for debugging
• release planned for October
• Online test of muon unpacking successful, but
• need geometry_management, how to react to missing
  crates?
• PDTs, sync bits
• Tool status
• DebugInfo next to be implemented
• verification/debugging of L3TMuoLocal and
  L3TMuoCentralMatch is next (November)