With the LHC physics runs concluded, it is crucial to ensure that the plethora of analyses carried out have a lasting impact beyond their paper publications, enabling new research based on reinterpretation and reuse of these important (and unique!) data.
This workshop marks the first general meeting of the LHC Reinterpretation (REI) Working Group, which succeeds the LHC Reinterpretation Forum (RIF). Its goal is to review recent developments in tools, phenomenology, and experimental approaches, with a particular focus on data and analysis preservation and reuse.
In addition to presentations on the WG's activities, in particular from the ongoing task forces, we welcome contributions on
- Development of public tools
- Phenomenological reinterpretation studies
- Analysis reproducibility, incl. reusable ML
- Open Data usage
- any other topic relevant to the reinterpretation of LHC results
Contributions from other LHC working groups are strongly encouraged to foster cross-collaboration!
Background
The REI Working Group provides a platform for ongoing discussion of topics related to beyond-the-Standard-Model (BSM) reinterpretation of LHC data, including the development of public recasting tools and supporting infrastructure.
To date, nine RIF workshops have been held at CERN, Fermilab, Imperial College London, and IPPP Durham. These efforts led to key community outputs, including:
- Reinterpretation of LHC Results for New Physics: Status and recommendations after Run 2 (2020, SciPostPhys.9.2.022)
- Publishing statistical models: Getting the most out of particle physics experiments (2021, SciPostPhys.12.1.037)
- Snowmass input: Data and analysis preseration, recasting and reinterpretation (2022, arXiv:2203.10057)
- European Strategy for Particle Physics Update (ESPPU) input: Reinterpretation and preservation of data and analyses in HEP (2025, arXiv:2504.00256).
Since 2025, the Forum has been integrated into the LPCC-organised LHC BSM working group.
** This edition marks the 10th anniversary since the first reinterpretation workshop in 2016 **