Combination of Searches for Higgs Boson Pair Production in Formula Presented Collisions at Formula Presented with the ATLAS Detector
journal contribution
posted on 2025-05-09, 10:10 authored by EK Filmer, J Gallagher, CM Grant, MJ Green, P Jackson, AXY Kong, HD Pandya, TA Ruggeri, S Saha, EXL Ting, MJ White, DM Gingrich, JH Lindon, N Nishu, JL Pinfold, O Cakir, AC Canbay, HD Yildiz, S Kuday, I Turk Cakir, S Sultansoy, C Adam Bourdarios, O Arnaez, R Balasubramanian, N Berger, L Boudet, N Brahimi, FL Castillo, T Cavaliere, F Costanza, J Couthures, M Delmastro, L Di Ciaccio, T Hryn’ova, I Koletsou, J Levêque, DJ Lewis, N Lorenzo Martinez, E Sauvan, Z Wu, G Bernardi, M Bomben, T Li, G Marchiori, K Nakkalil, S Chekanov, WH Hopkins, J Hoya, D Kim, NA Luongo, J Metcalfe, AS Mete, A Paramonov, J Proudfoot, P Van Gemmeren, T Wamorkar, R Wang, J Zhang, E Cheu, Z Cui, A Ghosh, KA Johns, W Lampl, RE Lindley, P Loch, NA Lopez-Canelas, JP Rutherfoord, J Sardain, EW Varnes, H Zhou, Y Zhou, D Bakshi Gupta, B Burghgrave, JCJ Cardenas, K De, A Farbin, HK Hadavand, KS Jones, AJ Myers, N Ozturk, G Usai, A White, S Angelidakis, D Fassouliotis, L Fountas, I Gkialas, C Kourkoumelis, T Alexopoulos, I Drivas-Koulouris, EN Gazis, C Kitsaki, S Maltezos, M Perganti, T Andeen, K Choi, PUE Onyisi, DK Panchal, M Tost, C Wang, N HuseynovThis Letter presents results from a combination of searches for Higgs boson pair production using Formula Presented of proton-proton collision data at Formula Presented recorded with the ATLAS detector. At 95% confidence level (CL), the upper limit on the production rate is 2.9 times the standard model (SM) prediction, with an expected limit of 2.4 assuming no Higgs boson pair production. Constraints on the Higgs boson self-coupling modifier Formula Presented, and the quartic Formula Presented coupling modifier Formula Presented, are derived individually, fixing the other parameter to its SM value. The observed 95% CL intervals are Formula Presented and Formula Presented, respectively, while the expected intervals are Formula Presented and Formula Presented in the SM case. Constraints obtained for several interaction parameters within Higgs effective field theory are the strongest to date, offering insights into potential deviations from SM predictions.
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review LettersISSN
0031-9007Publisher
American Physical Society (APS)Publisher URL
External DOI
Issue
10Volume
133Article number
101801Department affiliated with
- Physics and Astronomy Publications
Institution
University of SussexFull text available
- Yes
Peer reviewed?
- Yes
