Dispelling the L myth for the High-Luminosity LHC

Belvedere, Alberto; Englert, Christoph; Kogler, Roman; Spannowsky, Michael

Abstract

Extrapolations of sensitivity to new interactions and standard model parameters critically inform the programme at the Large Hadron Collider (LHC) and potential future collider cases. To this end, statistical considerations based on inclusive quantities and established analysis strategies typically give rise to a sensitivity scaling with the square root of the luminosity, L. This suggests only a mild sensitivity improvement for LHC’s high-luminosity phase, compared to the collected data up to the year 2025. We discuss representative analyses in top quark, Higgs boson and electroweak gauge boson phenomenology and provide clear evidence that the assumption that the sensitivity in searches and measurement scales only with L at the High-Luminosity LHC is overly conservative at best, and unrealistic in practice. As kinematic coverage enables more targeted search strategies with sufficient statistical sensitivity, employing a multitude of features in data dispels the scaling based on more inclusive selections.

Citation

Belvedere, A., Englert, C., Kogler, R., & Spannowsky, M. (2024). Dispelling the L myth for the High-Luminosity LHC. The European Physical Journal C, 84(7), Article 715. https://doi.org/10.1140/epjc/s10052-024-13032-w

• Journal Article Type: Article
• Acceptance Date: Jun 15, 2024
• Online Publication Date: Jul 20, 2024
• Publication Date: Jul 20, 2024
• Deposit Date: Jul 31, 2024
• Publicly Available Date: Jul 31, 2024
• Journal: The European Physical Journal C
• Print ISSN: 1434-6044
• Electronic ISSN: 1434-6052
• Publisher: SpringerOpen
• Peer Reviewed: Peer Reviewed
• Volume: 84
• Issue: 7
• Article Number: 715
• DOI: https://doi.org/10.1140/epjc/s10052-024-13032-w
• Public URL: https://durham-repository.worktribe.com/output/2617714