Current Action Items
Details below
- Menu tests: setup additional chains and run them (David+Ignacio)
- Detector configurations: check performance with individual Si layers off (David)
- Pile-up validation: measure PV efficiency with multiple interactions (David+Ignacio's scripts)
- Online vs. Offline beamspot comparison: compare both w.r.t. truth and w.r.t. offline (David)
Online Measurement
- Rainer+Philippe: Check out the track impact parameter algorithm and run it in athena. Look throught the histograms it produces and compare with the vertex algorithm.
- David: Identify the set of histograms from the vertex algorithm that will be common with the impact-parameter algorithm. Encapsulate in a python class/method that can be executed from either algorithm.
- David: Instantiate a second instance of the vertex algorithm with different parameters in the same job and make sure that the method produces two distinct sets. of histograms for both the algorithm-specific part as well as for the common part.
- David+Rainer: Do a low-level check on how the gatherer handles statistics. Verify that the individual contributions add up correctly, including event weights and errors.
- Rainer: Further discuss the pROS redistribution scheme with Benedetto, Per, Hans-Peter.
- David: Measure performance with only the inner 1,2,3.. layers off in the SCT. Also, ask Andrea how to run SiTrack with requiring only 3 hits per track
- David+Ignacio: Test different menu configurations
- RND0_filled + FS_tracks: backup trigger for physics running
- MBTX + FS_tracks: for van der Meer scans
- Verify the actual configuration of the current unseeded FS_tracks menu (beamspot_vtx_fs_tracks)
- David+Ignacio: Pile-up validation
- Measure vertex finding efficiency in events with multiple interactions
- 25ns, 450ns, no pile-up
- Compare with offline vertices
Offline Validation
- David: Compare online and offline measurements
- Compare both online and offline with truth information
- Compare online to offline event by event
- Compare "beamspot": use full statistics for each
- David+Rainer: Load our own online beamspot parameters for FDR2 and demonstrate how to access them from an offline job.
Completed or Closed Action Items
- David: Process the same (10?) ranges of FDR2 data that Juerg produced offline beamspot measurements for with the online algorithm and compare. Find/understand differences. Compare alignment and other conditions. Compare resolutions and see if they make sense.
- This has now resorted to running the online and offline beamspot on the same data (not the FDR2 due to DB problems)
- David+Rainer: Identify a tool to retrieve+load beamspot parameters in the conditions database. Extract the offline numbers that Juerg had loaded previously.
- One pair that works: Publishing with AtlCoolMerge and browsing with AtlCoolConsole
- Philippe+David: Optimize track/cluster/vertex selection cuts, in particular for low luminosity phase.
- David: Identify the location for adding xml so that beamspot histograms are displayed in online monitoring.
- /moncfg/beamspot on the P1 central file server
- Philippe+Rainer: Take the example of an existing xml file and tweak it to show some distributions from our vertex algorithm.
- See: OhpNexus User Guide
- David+Rainer: Follow up with Tomasz on how the per-lumi-block histograms are stored, in particular, on a path with the correct run number and under the /EXPRESS folder.
- All: Play with the xml to see how much information can be extracted, e.g., mean, truncated mean, RMS, error on mean.
- The "Configurator" that lets one create xml files
- Philippe: Contact Davide Caforio about DIP interface. Find out what else is needed to transmit beamspot parameters.
- Instructions for publishing data are here: Publishing via DIP
- Rainer+Philippe: Create a PVSS project for the beam spot and understand how to store and retrieve extracted parameters.## Some information here: Archiving in PVSS
- No more need for this, as the PVSS interface and project will be handled by Central DCS
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