Search for decays of the Higgs boson into a pair of pseudoscalar particles decaying into Formula Presented using Formula Presented collisions at Formula Presented with the ATLAS detector

Filmer, EK; Gallagher, J; Grant, CM; Green, MJ; Jackson, P; Kong, AXY; Pandya, HD; Ruggeri, TA; Saha, S; Ting, EXL; White, MJ; Gingrich, DM; Lindon, JH; Nishu, N; Pinfold, JL; Cakir, O; Canbay, AC; Yildiz, HD; Kuday, S; Turk Cakir, I; Sultansoy, S; Adam Bourdarios, C; Arnaez, O; Berger, N; Boudet, L; Brahimi, N; Castillo, FL; Cavaliere, T; Costanza, F; Couthures, J; Delmastro, M; Di Ciaccio, L; Hryn’ova, T; Koletsou, I; Levêque, J; Lewis, DJ; Lorenzo Martinez, N; Sauvan, E; Wu, Z; Bernardi, G; Bomben, M; Li, A; Li, T; Marchiori, G; Nakkalil, K; Chekanov, S; Hopkins, WH; Hoya, J; Kim, D; Luongo, NA; Metcalfe, J; Mete, AS; Paramonov, A; Proudfoot, J; Van Gemmeren, P; Wamorkar, T; Wang, R; Zhang, J; Cheu, E; Cui, Z; Ghosh, A; Johns, KA; Lampl, W; Lindley, RE; Loch, P; Lopez-Canelas, NA; Rutherfoord, JP; Sardain, J; Varnes, EW; Zhou, H; Zhou, Y; Bakshi Gupta, D; Burghgrave, B; Cardenas, JCJ; De, K; Farbin, A; Hadavand, HK; Jones, KS; Myers, AJ; Ozturk, N; Usai, G; White, A; Angelidakis, S; Fassouliotis, D; Fountas, L; Gkialas, I; Kourkoumelis, C; Alexopoulos, T; Drivas-Koulouris, I; Gazis, EN; Kitsaki, C; Maltezos, S; Perganti, M; Andeen, T; Choi, K; Onyisi, PUE; Panchal, DK; Tost, M; Wang, C; Huseynov, N

Search for decays of the Higgs boson into a pair of pseudoscalar particles decaying into Formula Presented using Formula Presented collisions at Formula Presented with the ATLAS detector

journal contribution

posted on 2025-05-09, 11:08 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, 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, A Li, 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 Huseynov

This paper presents a search for exotic decays of the Higgs boson into a pair of new pseudoscalar particles, Formula Presented, where one pseudoscalar decays into a Formula Presented-quark pair and the other decays into a Formula Presented-lepton pair, in the mass range Formula Presented. The analysis uses Formula Presented collision data at Formula Presented collected with the ATLAS detector at the LHC, corresponding to an integrated luminosity of Formula Presented. No significant excess above the Standard Model (SM) prediction is observed. Assuming the SM Higgs boson production cross section, the search sets upper limits at 95% confidence level on the branching ratio of Higgs bosons decaying into Formula Presented, Formula Presented), between 2.2% and 3.9% depending on the pseudoscalar mass.

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Publication status

Published

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Journal

Physical Review D

ISSN

2470-0010

Publisher

American Physical Society (APS)

Publisher URL

https://doi.org/10.1103/physrevd.110.052013

External DOI

https://doi.org/10.1103/PhysRevD.110.052013

Issue

5

Volume

110

Article number

052013

Department affiliated with

Physics and Astronomy Publications

Institution

University of Sussex

Full text available

Yes

Peer reviewed?

Yes

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Keywords

5106 Nuclear and Plasma Physics 5107 Particle and High Energy Physics 51 Physical Sciences

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CC BY 4.0

Search for decays of the Higgs boson into a pair of pseudoscalar particles decaying into Formula Presented using Formula Presented collisions at Formula Presented with the ATLAS detector

History

Publication status

File Version

Journal

ISSN

Publisher

Publisher URL

External DOI

Issue

Volume

Article number

Department affiliated with

Institution

Full text available

Peer reviewed?

Usage metrics

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Keywords

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