Pythia filter to focus on the probe side of B decays (backport)

[gkaratha]

PR description:

Its a dedicated filter to simulate the effect of probe side kinematics for B decays. By probe side we mean that the muons of B should be excluded from the filter, while the filter must be passed by another muon of the event (eg B+->mu1mu2K, B- ->mu3X; we want only the mu3 to be filtered). This filter helps to save valuable events that were going to be wasted by using the "standard" filters.

PR validation:

This is a backport of #26286 . There I have uploaded validation and performance plots. Also that PR passed all the tests.

if this PR is a backport please specify the original PR:

This PR is backport of #26286

[cmsbuild]

The code-checks are being triggered in jenkins.

[alberto-sanchez]

Its is the other way around. This is the implementation and #26286 is the backport

[alberto-sanchez]

please test

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-26300/8991

• This PR adds an extra 20KB to repository

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/33856/console Started: 2019/03/29 17:27

[cmsbuild]

A new Pull Request was created by @gkaratha for master.

It involves the following packages:

GeneratorInterface/GenFilters

@alberto-sanchez, @cmsbuild, @efeyazgan, @perrozzi, @qliphy can you please review it and eventually sign? Thanks.
@alberto-sanchez, @agrohsje, @mkirsano 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

[cmsbuild]

+1
Tested at: 24d6eb5
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-26300/33856/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-26300/33856/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 32
• DQMHistoTests: Total histograms compared: 3134059
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3133861
• DQMHistoTests: Total skipped: 197
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 31 files compared)
• Checked 133 log files, 14 edm output root files, 32 DQM output files

[alberto-sanchez]

+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)

[smuzaffar]

ping bot?

[fabiocos]

+1

validation details provided in the 10_2_X version