ROOT ntuple format 2015-2016 proton-proton Open Data for Education and Outreach beta release from the ATLAS experiment
ATLAS collaboration
Cite as: ATLAS collaboration (2025). ROOT ntuple format 2015-2016 proton-proton Open Data for Education and Outreach beta release from the ATLAS experiment. CERN Open Data Portal. DOI:10.7483/OPENDATA.ATLAS.B5M9.44TN
Dataset Simulated Collision ATLAS 13TeV pp CERN-LHC
Description
Run 2 2015+2016 proton-proton collision data and corresponding MC simulation Open Data for Education and Outreach from the ATLAS experiment
Related datasets
Run 2 2015+2016 proton-proton collision data beta release, 2J2LMET30 skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, 2J2LMET30 skim
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MC simulation, 2015+2016 proton-proton collisions beta release, 4lep skimATLAS ROOT ntuple format MC simulation, 2015+2016 proton-proton collisions beta release, 4lep skim
MC simulation, 2015+2016 proton-proton collisions beta release, 1LMET30 skim MC simulation, 2015+2016 proton-proton collisions beta release, 2muons skimATLAS ROOT ntuple format MC simulation, 2015+2016 proton-proton collisions beta release, 2muons skim
Run 2 2015+2016 proton-proton collision data beta release, 1LMET30 skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, 1LMET30 skim
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Run 2 2015+2016 proton-proton collision data beta release, 3J1LMET30 skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, 3J1LMET30 skim
MC simulation, 2015+2016 proton-proton collisions beta release, 3lep skimATLAS ROOT ntuple format MC simulation, 2015+2016 proton-proton collisions beta release, 3lep skim
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Run 2 2015+2016 proton-proton collision data beta release, 2muons skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, 2muons skim
MC simulation, 2015+2016 proton-proton collisions beta release, 2bjets skimATLAS ROOT ntuple format MC simulation, 2015+2016 proton-proton collisions beta release, 2bjets skim
Run 2 2015+2016 proton-proton collision data beta release, 2to4lep skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, 2to4lep skim
Run 2 2015+2016 proton-proton collision data beta release, 4lep skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, 4lep skim
Run 2 2015+2016 proton-proton collision data beta release, exactly3lep skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, exactly3lep skim
MC simulation, 2015+2016 proton-proton collisions beta release, 3J1LMET30 skim Run 2 2015+2016 proton-proton collision data beta release, GamGam skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, GamGam skim
MC simulation, 2015+2016 proton-proton collisions beta release, exactly3lep skim MC simulation, 2015+2016 proton-proton collisions beta release, 2J2LMET30 skim Run 2 2015+2016 proton-proton collision data beta release, 3lep skimATLAS ROOT ntuple format Run 2 2015+2016 proton-proton collision data beta release, 3lep skim
MC simulation, 2015+2016 proton-proton collisions beta release, no skimATLAS ROOT ntuple format MC simulation, 2015+2016 proton-proton collisions beta release, no skim
Dataset characteristics
9837961169 events. 4668 files. 2.5 TiB in total.How were these data generated?
These data were created during LS2 as part of a major reprocessing campaign of the Run 2 data. All data were reprocessed using Athena Release 22, and new corresponding MC simulation samples were produced. These data and MC simulation datasets were processed into ROOT ntuple files from the DAOD_PHYSLITE format that is released as open data for research. For the files in this record, several event pre-selections are available to accelerate analysis, as well as an inclusive set of all events.
How can you use these data?
The data and MC simulation provided by the ATLAS experiment in root ntuple format is released under a CC0 license; citation of the data and acknowledgement of the collaboration is requested. This format can be used directly using ROOT or uproot for simple studies and is primarily intended for educational and outreach purposes.
Extensive instructions for interacting with the data, as well as documentation of the dataset naming conventions and their contents, are provided on the ATLAS Open Data website linked below. For those interested in implementing a research-quality data analysis, the open data designed for research (also linked below) may be a better starting point. Please be sure to cite the Open Data that you use, in line with the policy below.
Resources to understand and use the open data for education and outreach
Files and indexes
Disclaimer
These open data are released under the Creative Commons Zero v1.0 Universal license.
Neither the experiment(s) ( ATLAS ) 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.
