# Presentation: 535369

## L3 Muon status

- Paul Balm
- collaboration meeting, Oct 2000

## Outline

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

- Paul Balm

- May 24, 2000

## 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)

- Paul Balm

- May 24, 2000

## Example of a display

- Paul Balm

- May 24, 2000

## 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

- Paul Balm

- May 24, 2000

## Using L3Display (2)

- Data is displayed by adding its Rep to the DisplayList
- There are only few Rep’s for L3 data types:
- L3TrackRep, MuoTrackRep, L3ZRegionRep
- If you’d want to use the L3Display for other data, you’ll 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

- Paul Balm

- May 24, 2000

## Testing muon unpackingonline

**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**

- Paul Balm

- May 24, 2000

## 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 week’s test...**
**that test must be put in the code (MF)**
**Coincidence filter...**

- Paul Balm

- May 24, 2000

## Requests for muon commissioning

**Coincidence filter:**
**	****Pass if there is coincidence between specific scintillators**
**will greatly reduce noise (now >90% 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...**

- Paul Balm

- May 24, 2000

## 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**

- Paul Balm

- May 24, 2000

## 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 **

- Paul Balm

- May 24, 2000

## 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)**

- Paul Balm

- May 24, 2000