TrigHypoCommonTools: Update MT calculation
Hello,
This is a resubmission of !54456 (closed) with an updated reference file, to maximise our chances to have this merged in time for the MC21a release (22.0.72) expected imminently. The changes are otherwise the same as in the original MR from @bcarlson .
Pasting the original description for completeness:
The transverse mass calculation used was updated to reflect common practice at hadron colliders. In the previous iteration, the mass calculation used is not common at hadron colliders, as it does not give a peak at the parent particle mass. The updated version reflects the recommendation of PDG 49.6, and is relevant for decays such as W->e,nu (or H->yyd) where part of the decay is invisible. The common expression is:
sqrt(2pt1pt2*(1-cos(dphi)).
This update is now reflected in the hypo calculation.
Cheers, Bertrand
Merge request reports
Activity
added urgent label
added 22.0 Trigger changes-trigger-counts review-pending-level-1 labels
- Resolved by Bertrand Martin Dit Latour
Thanks for updating the references file. I was working on it... but it's better to have it in. I'll move on to other things. Thanks again!
Ben
Also tagging @coccaro . As it's changing the counts, it would be great to merge this with higher priority, should the CI turn green... Thanks!
CI Result SUCCESS (hash 8b034047)Athena DetCommon externals cmake make required tests optional tests Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 54870]added review-approved-tier0 label
added review-approved label and removed review-pending-level-1 label
added review-approved-point1 label
mentioned in commit a4b0c620
mentioned in merge request !54593 (merged)
mentioned in merge request !54456 (closed)
mentioned in merge request !54591 (closed)
mentioned in commit 14a28e2e