Difference: WorkBookDataFormats (30 vs. 31)

Revision 312016-06-27 - SudhirMalik

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META TOPICPARENT name="WorkBook"

3.2 Data Formats and Data Tiers

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Event Format Contents
<!-- -->
Sorted ascending
Purpose Data Type Ref Event Size (MB)
DAQ-RAW Detector data
<!--in FED format-->
from front end electronics + L1 trigger result.
Primary record of physics event. Input to online HLT   1-1.5
Changed:
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RAW Detector data after online formatting, the L1 trigger result, the result of the HLT selections (HLT trigger bits), potentially some of the higher level quantities calculated during HLT processing. Input to Tier-0 reconstruction. Primary archive of events at CERN.   1.5
RECO Reconstructed objects (tracks, vertices, jets, electrons, muons, etc.) and reconstructed hits/clusters Output of Tier-0 reconstruction and subsequent rereconstruction passes. Supports re-finding of tracks, etc. RECO & AOD 0.25
>
>
RAW Detector data after online formatting, the L1 trigger result, the result of the HLT selections (HLT trigger bits), potentially some of the higher level quantities calculated during HLT processing. Input to Tier-0 reconstruction. Primary archive of events at CERN.   0.70-0.75
RECO Reconstructed objects (tracks, vertices, jets, electrons, muons, etc.) and reconstructed hits/clusters Output of Tier-0 reconstruction and subsequent rereconstruction passes. Supports re-finding of tracks, etc. RECO & AOD 1.3-1.4
 
AOD Subset of RECO. Reconstructed objects (tracks, vertices, jets, electrons, muons, etc.). Possible small quantities of very localised hit information. Physics analysis, limited refitting of tracks and clusters RECO & AOD 0.05
TAG Run/event number, high-level physics objects, e.g. used to index events. Rapid identification of events for further study (event directory).   0.01
FEVT Full Event: Term used to refer to RAW+RECO together (not a distinct format). multiple   1.75
 
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