Forum on the Interpretation of the LHC Results for BSM studies

The quest for new physics beyond the Standard Model is arguably the driving topic for Run 2 of the LHC. Indeed, the LHC collaborations are pursuing searches for new physics in a vast variety of channels. While the collaborations typically provide themselves interpretations of their results, for instance in terms of simplified models, the full understanding of the implications of these searches requires the interpretation of the experimental results in the context of all kinds of theoretical models. This is a very active field, with close theory-experiment interaction and with several public tools being developed.

With this forum, we want to provide a platform for continued discussion of topics related to the BSM (re)interpretation of LHC data, including the development of the necessary public RecastingTools and related infrastructure.

If you have questions or want to contribute, contact Sabine Kraml,, or the whole steering group via

Mailing list

Reports, resources, etc

  • Snowmass white paper on Data and Analysis Preservation, Recasting, and Reinterpretation: arXiv:2203.10057 (Mar 18, 2022)
  • White paper on Publishing statistical models: Getting the most out of particle physics experiments: arXiv:2109.04981 (Sep 9, 2021)
  • Our Forum's report Reinterpretation of LHC Results for New Physics: Status and recommendations after Run 2 has been published in SciPost Phys. 9, 022 (2020)


RAMP seminars

RAMP stands for "Reinterpretation: Auxiliary Material Presentation". It is a new series of short meetings throughout the year, where young experimentalists present the material for their analyses in a ~15-20 min talk, followed by a discussion with potential (re)users. The aim is to create more direct experiment-theory interaction, and to give more visibility and recognition to the effort of preparing and providing extensive material for reinterpretation. The kick off is on 9 April 2021, see here for the schedule

Suggestions for future RampSeminars.

Workshops of this forum (all meetings)

Other workshops and meetings, potentially interesting for our forum


[2022-08-31] the TACO paper is out: ``Strength in numbers: optimal and scalable combination of LHC new-physics searches'', J.Y. Araz et al., 2209.00025

[2022-06-29] Likelihoods via pyhf interface now also available in MadAnalysis5, 2206.14870

[2021-12-01] SModelS version 2: better LLP constraints and other novelties, 2112.00769


Steering group

The steering group is composed of individual physicists, both theorists and experimentalists, who are diving the reinterpretation efforts. It also comprises a representative of each of the public recasting tools. Current members are (for details, see these slides):

Jack Araz, Jon Butterworth, Andy Buckley, Carsten Burgard,Nishita Desai, Matthew Feickert, Marie-Helene Genest, Thomas Gonzalo (tbc), Lukas Heinrich, Sabine Kraml, Clemens Lange, Michelangelo Mangano (tbc), Federico Redi, Krzysztof Rolbiecki, Sezen Sekmen, Markus Seidel, Nick Wardle.

Mailing list: :

Previous steering group members: Kyle Cranmer, Matthias Danninger, Matthew Dolan, Benjamin Fuks, Ahmed Ismail, Frank Krauss, Michael Krämer, Suchita Kulkarni, Nazila Mahmoudi, Stefano Moretti, Pat Scott, Jamie Tattersall, Wolfgang Waltenberger, Andreas Weiler.

Topics, ongoing and proposed efforts

see ListofTopics and better SciPost Phys. 9, 022 (2020)

Examples of recast studies

  • This list of recent RecastingStudies may serve as a feedback to the experiments about the use of their results and the information they provide.

  • 'Best practice' guide: we remind all colleagues doing recasts that they, too, should provide their codes and supplementary info to the community/experiments (via HEPData where appropriate, or via our Zenodo community), to make it easier for others to repeat and/or re-use their results.


  • Searches for New Physics: Les Houches Recommendations for the Presentation of LHC Results, S. Kraml et al., Eur.Phys.J. C72 (2012) 1976, arXiv:1203.2489
  • Wish list from phenomenologists: material needed for implementing and validating LHC new physics searches in fast simulation tools, recast-wishlist-2014.pdf (30 Sep 2014)
  • Reinterpretation of LHC Results for New Physics: Status and recommendations after Run 2, SciPost Phys. 9, 022 (2020)


Other initiatives or working groups

Related previous workshops

-- SabineKraml - 2022-12-16

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf recast-wishlist-2014.pdf r1 manage 91.2 K 2016-06-29 - 10:46 SabineKraml Wish list from phenomenologists: material needed for implementing and validating LHC new physics searches in fast simulation tools (30 Sep 2014)
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