MinimumBias primary dataset sample in RAW format from RunB of 2012 (from /MinimumBias/Run2012B-v1/RAW)

Description

A sample from MinimumBias primary dataset in RAW format from RunB of 2012. Run range [193834, 194050].

This dataset contains selected runs from 2012 RunB. The list of validated lumi sections, 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 low-energy particles (soft-QCD events). This trigger is favorable over the ZeroBias one when the luminosity, and thus the rate of collisions to tape, is too low for ZeroBias to be effective.

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

HLT trigger paths
The possible HLT trigger paths in this dataset are:
HLT_JetE30_NoBPTX
HLT_JetE30_NoBPTX3BX_NoHalo
HLT_JetE50_NoBPTX3BX_NoHalo
HLT_JetE70_NoBPTX3BX_NoHalo
HLT_Physics
HLT_Physics5E33_2b
HLT_Physics5E33_48b
HLT_Physics5E33_84b
HLT_PixelTracks_Multiplicity70
HLT_PixelTracks_Multiplicity80
HLT_PixelTracks_Multiplicity90
HLT_Random
HLT_ZeroBias
HLT_ZeroBiasPixel_DoubleTrack

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?

These data are in RAW format and not directly usable in analysis. The reconstructed data reprocessed from these RAW data are included in the data of this record. The reconstruction step can be repeated with the configuration file below and the resulting AOD can be compared with the original one using the code available in Validation code to plot basic physics objects from AOD

Example configuration file for reconstruction

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.