More dE/dx info in AOD

[gpetruc]

Save prescaled dE/dx hit information for low pt tracks, to allow calibration on AOD
It also declares the producer for I_h as in EXO-16-036 but I didn't add it to the event content yet.

Presentation: https://indico.cern.ch/event/660773/
I checked also the rates of tracks from the JetHT PD in the recent run 300575, where before prescaling I see ~10 tracks/event in region A (pt > 10), 85 tracks/event in region B (low pt, high dE/dx) and ~550 tracks/event in region C (low pt, low dEdx)

I can also push in this PR the changes from code-checks and the static analyzer for the RecoTracker/DeDx package, but I didn't want to mix that with the content-related changes.
Those changes are in this diff

@arizzi @jozzez1

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

A new Pull Request was created by @gpetruc (Giovanni Petrucciani) for master.

It involves the following packages:

RecoTracker/DeDx

@perrotta, @cmsbuild, @slava77 can you please review it and eventually sign? Thanks.
@ghellwig, @makortel, @felicepantaleo, @GiacomoSguazzoni, @rovere, @VinInn, @mschrode, @ebrondol, @dgulhan this is something you requested to watch as well.
@davidlange6, @slava77 you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

-code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/PR-20236/250

Code check has found code style and quality issues which could be resolved by applying a patch in https://cmssdt.cern.ch/SDT/code-checks/PR-20236/250/git-diff.patch
e.g. curl https://cmssdt.cern.ch/SDT/code-checks/PR-20236/250/git-diff.patch | patch -p1

In future, you can run scram build code-checks to apply code checks

[VinInn]

@cmsbuild , please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/22429/console Started: 2017/08/22 18:34

[cmsbuild]

+1
Tested at: e16220c
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-20236/22429/summary.html

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:
e739f38
You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-20236/22429/git-log-recent-commits
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-20236/22429/git-merge-result

[cmsbuild]

Comparison job queued.

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/22620/console Started: 2017/08/31 16:15

[cmsbuild]

+1
Tested at: d6272b7
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-20236/22620/summary.html

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:
94fab3e
You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-20236/22620/git-log-recent-commits
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-20236/22620/git-merge-result

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-20236/22620/summary.html

Comparison Summary:

• No significant changes to the logs found
• ROOTFileChecks: Some differences in event products or their sizes found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 26
• DQMHistoTests: Total histograms compared: 2656041
• DQMHistoTests: Total failures: 252
• DQMHistoTests: Total nulls: 2
• DQMHistoTests: Total successes: 2655598
• DQMHistoTests: Total skipped: 189
• DQMHistoTests: Total Missing objects: 0
• Checked 107 log files, 14 edm output root files, 26 DQM output files

[perrotta]

code-checks

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/PR-20236/442

[perrotta]

+1

• Additional dedx info added on a prescaled number of low pt tracks
• The pseudorandom generator used to prescale only depends on the seed made by evt/lumiblock, and it is therefore by itself thread-safe. (It will not be any more thread-safe if there are other non reproducibilities somewhere else which modify the number of tracks, but this is not a matter for this PR)
• The additonal eventsize, measured on a TTbar sample with PU (wf 10224), is in line with the expectations reported in the attached slides:
  0.0 -> 32.7 33 NEWO 0.00 intedmValueMap_dedxHitInfo_prescale_RECO.
  96539.7 -> 96551.0 11 0.0 0.00 recoTracks_generalTracks__RECO.
  2477.9 -> 3086.4 609 21.9 0.03 recoDeDxHitInfos_dedxHitInfo__RECO.

---

2373002 -> 2373660 658 0.0 ALL BRANCHES

[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 (and backports should be raised in the release meeting by the corresponding L2)

[davidlange6]

+1