The 13 TeV ...

… ATLAS Open Data samples

In 2020, a new set of pp collision data has been released by the ATLAS Collaboration to the public for educational purposes. The data has been collected by the ATLAS detector at the LHC at 13 TeV during the year 2016 and corresponds to an integrated luminosity of 10 fb-1. The pp collision data is accompanied by a set of MC simulated samples describing several processes which are used to model the expected distributions of different signal and background events.


Follow the Official 13 TeV Documentation


  • The released samples are provided in a simplified data format, reducing the information content of the original data analysis format used within the ATLAS Collaboration.

  • The resulting format is a ROOT tuple with more than 80 branches. For those not familiar with this modular scientific software toolkit, please refer to the ROOT documentation, which provides a rich set of tutorials and code examples.

  • Several final-state collections are provided within the 13 TeV ATLAS Open Data release. The corresponding multiplicities of final-state objects, minimum transverse momentum requirements and collection names are shown below:




Follow the Official 13 TeV Documentation


Are you looking for the 8 TeV samples?


This dataset is provided by the ATLAS Collaboration only for educational purposes and is not suited for scientific publications.

  • The ATLAS Open Data are released under the Creative Commons CC0 waiver.
  • Neither ATLAS nor CERN endorses any works produced using these data, which is intended only for educational use.
  • All data sets will have a unique DOI that you are requested to cite in any (non-scientific) applications or publications.
  • Despite being processed, the high-level primary datasets remain complex, and selection criteria need to be applied in order to analyse them, requiring some understanding of particle physics and detector functioning.
  • The large majority of the data cannot be viewed in simple data tables for spreadsheet-based analyses.