[14.1.X] fix minimum of the di-muon mass window in the Z→μμ validation tool

[mmusich]

backport of #46134

PR description:

It was recently noticed that the default mass window range in the python configuration of the ZMuMu validation tool was in the range [80-120] GeV.
Restricting the mass fits in this asymmetric region around the Z mass peak ends up biasing the output fit parameters, as illustrated e.g. this plot:

This in turn created some unphysical features in the distribution of the invariant mass peak position as a function of the muon kinematic that are used to validate the various alignments.
The goal of this PR is to allow the fit to cover the whole region [60-120] GeV as default value in the all-in-one tool configuration, as already done in the fillDescriptions method of the plugin, see:

cmssw/Alignment/OfflineValidation/plugins/DiMuonValidation.cc

Lines 380 to 381 in 3914bc8

	desc.add<double>("Pair_mass_min", 60.);
	desc.add<double>("Pair_mass_max", 120.);

PR validation:

The tool was run in the vanilla release and the newly proposed defaults.

Default	This PR

as it can be seen unphysical bin by bin oscillations are removed.

If this PR is a backport please specify the original PR and why you need to backport that PR. If this PR will be backported please specify to which release cycle the backport is meant for:

verbatim backport of #46134 to CMSSW_14_0_X

[cmsbuild]

A new Pull Request was created by @mmusich for CMSSW_14_1_X.

It involves the following packages:

• Alignment/OfflineValidation (alca)

@atpathak, @cmsbuild, @consuegs, @perrotta can you please review it and eventually sign? Thanks.
@adewit, @mmusich, @rsreds, @tlampen, @tocheng, @yuanchao this is something you requested to watch as well.
@antoniovilela, @mandrenguyen, @rappoccio, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

• Backported from fix minimum of the di-muon mass window in the Z->mm validation tool #46134

[cmsbuild]

cms-bot internal usage

[mmusich]

type bug-fix

[mmusich]

@cmsbuild, please test

[cmsbuild]

+1

Size: This PR adds an extra 16KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6105d9/41801/summary.html
COMMIT: c3e483e
CMSSW: CMSSW_14_1_X_2024-09-27-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/46145/41801/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 1 lines to the logs
• Reco comparison results: 8 differences found in the comparisons
• DQMHistoTests: Total files compared: 44
• DQMHistoTests: Total histograms compared: 3331166
• DQMHistoTests: Total failures: 6
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3331140
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 43 files compared)
• Checked 191 log files, 161 edm output root files, 44 DQM output files
• TriggerResults: no differences found

[perrotta]

+alca

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_14_1_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_14_2_X is complete. This pull request will now be reviewed by the release team before it's merged. @antoniovilela, @rappoccio, @sextonkennedy, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1