ElectronHad primary dataset in AOD format from Run of 2012 (/ElectronHad/Run2012A-22Jan2013-v1/AOD)

Name: /ElectronHad/Run2012A-22Jan2013-v1/AOD
Creator: CMS collaboration
Published: 2022

/ElectronHad/Run2012A-22Jan2013-v1/AOD, CMS collaboration

Cite as: CMS collaboration (2022). ElectronHad primary dataset in AOD format from Run of 2012 (/ElectronHad/Run2012A-22Jan2013-v1/AOD). CERN Open Data Portal. DOI:10.7483/OPENDATA.CMS.YONC.0ATH

Dataset Collision CMS 8TeV pp CERN-LHC

Description

ElectronHad primary dataset in AOD format from RunA of 2012. Run period from run number 190456 to 193621.

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

8873078 events. 655 files. 2.3 TiB in total.

System details

Recommended global tag for analysis: FT53_V21A_AN6
Recommended release for analysis: CMSSW_5_3_32
Recommended container image for analyses is available in the following locations (see guide):

docker.io/cmsopendata/cmssw_5_3_32-slc6_amd64_gcc472:latest
gitlab-registry.cern.ch/cms-cloud/cmssw-docker-opendata/cmssw_5_3_32-slc6_amd64_gcc472:latest

How were these data selected?

Events stored in this primary dataset were selected because of the presence of at least one or two isolated high-energy electrons and high missing transverse momentum from jets; or one or two isolated high-energy electrons and a high scalar sum of the jet transverse momenta (HT); or one or two isolated high-energy electrons and loose hyperbolic cut on razor variables, like R2 and MR, defined in terms of the momentum of two megajets; or at least two isolated electrons and two or more 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_2012A_ElectronHad

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 Open Data container or the CMS Virtual Machine. See the instructions for setting up one of the two alternative environments and getting started in

Running CMS analysis code using Docker

How to install the CMS Virtual Machine

Getting started with CMS open data

Disclaimer

These open data are released under the Creative Commons Zero v1.0 Universal license.

Neither the experiment(s) ( CMS ) nor CERN endorse any works, scientific or otherwise, produced using these data.

This release has a unique DOI that you are requested to cite in any applications or publications.