Retune RICH CK theta reco. biases for DD4HEP/DetDesc individually
Small bias corrections are applied in the RICH CK photon reconstruction to the Cherenkov theta values, to account for small intrinsic biases in the reconstruction. These are small, but its useful to correct them out to maximise PID performance.
In real data, this is in effect what the n-1 scale factor run-by-run calibrations achieve. So the corrections here are really to help calibrate MC data.
Previously there was only a single set of corrections, whereas now I have slightly different values for DetDesc versus DD4HEp builds (as the underlying reasons for the tiny biases are not known its not entirely a surprise they need slightly different values).
Because this MR changes slightly the CK theta values, any QMT test running the RICH reco. will need a ref update (i.e. in Rec, Moore and Panoptes).
Merge request reports
Activity
added RICH needs ref update labels
added RTA label
- Resolved by Christopher Rob Jones
/ci-test
added ci-test-triggered label
- [2023-09-21 14:57] Validation started with lhcb-master-mr#9271
- [2023-10-05 00:58] Validation started with lhcb-master-mr#9383
- [2023-12-21 13:59] Validation started with lhcb-master-mr#9997
- [2024-01-16 12:49] Validation started with lhcb-master-mr#10135
Edited by Software for LHCbmentioned in merge request !3578 (merged)
mentioned in issue Moore#669 (closed)
mentioned in issue Moore#671 (closed)
added dependent MR label
mentioned in merge request LHCb!4288 (merged)
added 310 commits
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1b7a6498...839583fd - 309 commits from branch
lhcb:master
- e1d9c65d - Retune RICH CK theta reco. biases for DD4HEP/DetDesc individually
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1b7a6498...839583fd - 309 commits from branch
mentioned in commit 88808f5f
mentioned in commit Moore@5ff2d967
mentioned in merge request !3712 (merged)
mentioned in commit Panoptes@97ea7d03
mentioned in merge request Moore!2851 (merged)
mentioned in merge request Panoptes!308 (merged)
mentioned in commit Moore@e7c7e55f
mentioned in commit 260bc044
mentioned in commit c79e545b
mentioned in commit Moore@99cccd6d
mentioned in commit Panoptes@c97f658b
mentioned in commit 73dc225d
mentioned in commit 7c3e6a0f
mentioned in issue Moore#688 (closed)
mentioned in commit Moore@b4fbf4f0