Add pythia8 config for T1tttt SMS

[duanders]

Adding a Pythia8 config for the SUSY simplified model T1tttt. The sample is pythia-only, with the needed SLHA file embedded in the config.

This PR is part of a request to add T1tttt to the RelVal sequence, replacing the LM1 sample. The request was presented here: https://indico.cern.ch/event/371138/contribution/8/material/slides/0.pdf

[bendavid]

Gen fragment is missing the UE tune piece (should use TuneCUETP8M1 as in the other fragments)

[cmsbuild]

A new Pull Request was created by @duanders (Dustin Anderson) for CMSSW_7_5_X.

Add pythia8 config for T1tttt SMS

It involves the following packages:

Configuration/Generator

@vciulli, @covarell, @thuer, @cmsbuild, @nclopezo, @bendavid can you please review it and eventually sign? Thanks.
@ghellwig, @Martin-Grunewald this is something you requested to watch as well.
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@nclopezo you are the release manager for this.
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[duanders]

Added the CUEP8M1 settings.

[bendavid]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs unless changes or unless it breaks tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @ktf, @smuzaffar

[ktf]

Please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

+1
Tested at: 33fc7ec
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-8620/7727/summary.html

#I am becoming aware of myself, this is awesome!

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_5_X IBs unless changes (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @nclopezo, @ktf, @smuzaffar

[davidlange6]

+1

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-8620/7727/summary.html

#Running tests all day long. Running tests while I sing this song

[franzoni]

hello @duanders
in light of what was discussed last week at the PPD, can you please back-port this gen fragment also to 74x ? While working on the matrix implications, I've realised it's not there.
@bendavid / roberto, I trust you were at the discussion during Dustin's talk, and know the rational.
Cheers. g