CERN-PH-CMG/cmg-cmssw — pull request #30 by gpetruc (2014-03-07 12:23:12+00:00)
Title: By default, make slim CMG Tuple

Turn on the following slimming options in the top-level cfg file
- 16bit PF Candidates instead of 32 bit ones
- TriggerPrescales instead of fat single TriggerObject
- slimmed PVs (without track references)

For the 16 bit candidates, in the absence of any other validation, I checked that re-reconstructing the ak5PFJetsCHS and ca8PFJetsCHS (both pruned and not pruned) from the 16 bit candidates the η and φ are reproduced to an absolute accuracy of about 0.0001, and the pT and mass are similarly reproduced with a relative accuracy of ~0.0001.
A few plots:
http://gpetrucc.web.cern.ch/gpetrucc/drop/plots/16bit/?match=ak5PF*_hD
http://gpetrucc.web.cern.ch/gpetrucc/drop/plots/16bit/?match=ca8PFJetsCHSpr*cM
http://gpetrucc.web.cern.ch/gpetrucc/drop/plots/16bit/?match=ca8PFJetsCHSpr*DMR
http://gpetrucc.web.cern.ch/gpetrucc/drop/plots/16bit/?match=ca8PFJetsCHSpr*DPt
(note: uncorrected jets, with a only a minimal selection, no jet id, no pu id, no cleaning of leptons...)