Update GE2/1 LUTs for GE2/1-ME2/1 integrated local trigger

[dildick]

PR description:

This PR updates a few LUTs for GE2/1-ME2/1 in the Phase-2 CSC local trigger. GE2/1 geometry changed some time ago from 12 to 8 eta partitions. The out-of-data LUTs caused significant drops in efficiency for the GE2/1-ME2/1 integrated trigger stubs.

PR validation:

I tested this PR with a Phase-2 PU0 single muon sample to make sure that ALCTs were properly matched to GEM pads.

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-27957/11821

• This PR adds an extra 20KB to repository

[cmsbuild]

A new Pull Request was created by @dildick (Sven Dildick) for master.

It involves the following packages:

L1Trigger/CSCTriggerPrimitives

@cmsbuild, @rekovic, @benkrikler can you please review it and eventually sign? Thanks.
@valuev, @ptcox, @Martin-Grunewald this is something you requested to watch as well.
@davidlange6, @slava77, @fabiocos you are the release manager for this.

cms-bot commands are listed here

[rekovic]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/2444/console Started: 2019/09/10 11:54

[cmsbuild]

+1
Tested at: ab1e142
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-294fab/2444/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-294fab/2444/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 34
• DQMHistoTests: Total histograms compared: 2957224
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2956882
• DQMHistoTests: Total skipped: 341
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 33 files compared)
• Checked 145 log files, 15 edm output root files, 34 DQM output files

[dildick]

@rekovic Do you have any more comments?

[rekovic]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @davidlange6, @slava77, @smuzaffar, @fabiocos (and backports should be raised in the release meeting by the corresponding L2)

[fabiocos]

@dildick @rekovic as far as I understand this is supposed to affect only Phase2, a not previous setups, am I correct? The PR test does not show any change, I may guess because of the limited statistics

[dildick]

@fabiocos Correct. This only affects Phase-2.

I think there would have to be muons flying exactly into those regions of ME2/1 where the LCT efficiency is reduced due to a lower high-voltage to see an effect. Because that is where Cathode LCTs are typically lost. If I'm not mistaken, this reduced high-voltage region is about 10-15% of ME21/, corresponding to a delta eta between 0.1 and 0.2. The tests are limited in statistics. I tested these changes on several thousand muons with |eta| between 1.6 and 2.4.

[fabiocos]

+1