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About HepSim

HepSim is a public repository with Monte Carlo simulated events for particle-collision experiments. The HepSim repository was started at ANL during the US long-term planning study of the American Physical Society’s Division of Particles and Fields (Snowmass 2013). It contains predictions from leading-order (LO) parton shower models, next-to-leading order (NLO) and NLO with matched parton showers. It also includes Monte Carlo events after fast (“parametric”) and full (Geant4) detector simulations and event reconstruction.

HepSim contains event samples for physics and detector-performance studies for High-Luminosity LHC (HL-LHC), International Linear Collider (ILC), Very Large Hadron Collider (VLHC), Future Circular Collider (FCC-ee and FCC-hh), Compact Linear Collider (CLIC), Circular Electron-Positron Collider (CEPC), Electron-Ion Collider (EIC) and other future particle colliders.

HepSim Monte Carlo samples are registered by the U.S. Department of Energy Office of Scientific and Technical Information, OSTI.GOV. Each event sample is assigned a DOI (Digital Object Identifier) number as listed on the ANL-HEPSIM OSTI.GOV page. The assigned DOI numbers are also indicated on the HepSim information panel for datasets. HepSim was designed following the guidelines and principles of DOE Public Access Plan for unclassified and otherwise unrestricted scientific data in digital formats.

For HepSim users

Physics and detector studies

HepSim manual:Physics and detector studies

Here are several links for extending this Wiki for particular detector-performance topics:

For developers

Public results


How to cite

HepSim manual:For HepSim users

If you use HepSim event samples, Python/Jython analysis scripts and output XML files in your research, talks or publications, please cite this project as:

S.V. Chekanov. HepSim: a repository with predictions for high-energy physics experiments. Advances in High Energy Physics, vol. 2015, ID136093, 2015. arXiv:1403.1886 and link.

Click here to display BibTeX article entry

Click here to display BibTeX article entry

      author         = "Chekanov, S.V.",
      title          = "{HepSim: a repository with predictions for high-energy physics experiments}",
      year           = "2015",
      eprint         = "1403.1886",
      journal        = "Advances in High Energy Physics",
      volume         = "2015",
      pages          = "136093",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      note           = {Available as \url{}}


The current work is supported UChicago Argonne, LLC, Operator of Argonne National Laboratory (``Argonne''). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under contract DE-AC02-06CH11357.

Sergei Chekanov 2016/04/29 16:24

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