StoppedParticles Bug Fix for 71X

[jalimena]

Backport of #8282 to be available for 13 TeV MC production.
This PR fixes a bug in StoppedParticles for antiparticles, and adds more debug statements.

[cmsbuild]

A new Pull Request was created by @jalimena (Juliette Alimena) for CMSSW_7_1_X.

StoppedParticles Bug Fix for 71X

It involves the following packages:

SimG4Core/CustomPhysics

@cmsbuild, @civanch, @nclopezo, @mdhildreth can you please review it and eventually sign? Thanks.
@makortel this is something you requested to watch as well.
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@Degano you are the release manager for this.
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[civanch]

please test

[civanch]

+1

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @ktf, @smuzaffar

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @ktf, @smuzaffar

[cmsbuild]

+1
Tested at: 8f54ada
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-8337/3541/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-8337/3541/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @ktf, @smuzaffar

[davidlange6]

+1