PhotonHad primary dataset in AOD format from Run of 2012 (/PhotonHad/Run2012B-22Jan2013-v1/AOD)

Description

PhotonHad primary dataset in AOD format from RunB of 2012. Run period from run number 193833 to 196531.

This dataset contains all runs from 2012 RunB. The list of validated runs, which must be applied to all analyses, can be found in

CMS list of validated runs Cert_190456-208686_8TeV_22Jan2013ReReco_Collisions12_JSON.txt

Dataset characteristics

System details

How were these data selected?

Events stored in this primary dataset were selected because of the presence of at least one photon and high missing transverse momentum from jets; or one photon and a high scalar sum of the jet transverse momenta (HT); or one photon and the requirement of a loose hyperbolic cut on razor variables, like R2 and MR, defined in terms of the momentum of two megajets; or one photon and three jets in the event.

Data taking / HLT
The collision data were assigned to different RAW datasets using the following HLT configuration.

Data processing / RECO
This primary AOD dataset was processed from the RAW dataset by the following step:
Step: RECO
Release: CMSSW_5_3_7_patch5
Global tag: FT_R_53_V18::All
Configuration file for RECO step reco_2012B_PhotonHad

HLT trigger paths
The possible HLT trigger paths in this dataset are:
HLT_Photon40_CaloIdL_RsqMR35_Rsq0p09_MR150
HLT_Photon40_CaloIdL_RsqMR40_Rsq0p09_MR150
HLT_Photon40_CaloIdL_RsqMR45_Rsq0p09_MR150
HLT_Photon40_CaloIdL_RsqMR50_Rsq0p09_MR150
HLT_Photon60_CaloIdL_FJHT300
HLT_Photon60_CaloIdL_HT300
HLT_Photon60_CaloIdL_MHT70
HLT_Photon70_CaloIdXL_PFHT400
HLT_Photon70_CaloIdXL_PFHT500
HLT_Photon70_CaloIdXL_PFMET100
HLT_Photon70_CaloIdXL_PFNoPUHT400
HLT_Photon70_CaloIdXL_PFNoPUHT500
HLT_Photon90EBOnly_CaloIdVL_IsoL_TriPFJet25
HLT_Photon90EBOnly_CaloIdVL_IsoL_TriPFJet30

How were these data validated?

During data taking all the runs recorded by CMS are certified as good for physics analysis if all subdetectors, trigger, lumi and physics objects (tracking, electron, muon, photon, jet and MET) show the expected performance. Certification is based first on the offline shifters evaluation and later on the feedback provided by detector and Physics Object Group experts. Based on the above information, which is stored in a specific database called Run Registry, the Data Quality Monitoring group verifies the consistency of the certification and prepares a json file of certified runs to be used for physics analysis. For each reprocessing of the raw data, the above mentioned steps are repeated. For more information see:

CMS data quality monitoring: Systems and experiences

The CMS Data Quality Monitoring software experience and future improvements

The CMS data quality monitoring software: experience and future prospects

How can you use these data?

You can access these data through the CMS Virtual Machine. See the instructions for setting up the Virtual Machine and getting started in

How to install the CMS Virtual Machine

Getting started with CMS open data

Disclaimer

The open data are released under the Creative Commons CC0 waiver. Neither CMS nor CERN endorse any works, scientific or otherwise, produced using these data. All releases will have a unique DOI that you are requested to cite in any applications or publications.