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KIT-CMS / Excalibur

Analysis repository for Z+Jet studies
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Use Z-leptons instead of mu1/muplus/... #37

Open ghost opened 8 years ago

ghost commented 8 years ago

At the moment, we have zmu1X and mu1X quantities (and mu2, muplus, muminus). In most use cases, mu1 is actually used to represent zmu1. It might be worthwhile to phase out mu1 in favor for zmu1 and complete the zmuX quantities.

In case of muplus/muminus, this seems to be not an issue, as they are by design meant to be zmuplus/zmuminus. Any differences are an error in muplus/muminus. For mu1, there is technically a valid difference, however.

My questions: should mu1 be phased out in favor of zmu1? Should the names also be changed from zmu1 to just mu1?

dhaitz commented 8 years ago

I think for mu1/2/plus/minus one always wants the muons from Z decay, so yes (to both questions)

ghost commented 8 years ago

Just another question that came to mind if we are now (potentially) doing Z->ee also. Instead of having zmu1/... and zel1/..., should we use zl1/... and attach also expose the particle ID? The current mu1/... could be made an alias in Merlin only.

dhaitz commented 8 years ago

sounds good

ghost commented 8 years ago

Added zl(1|2|plus|minus)(pt|eta|phi|pdgid) to excalibur itself in https://github.com/artus-analysis/Excalibur/commit/e9941639342f9598610e01aa7a953445d7f783dd.