Search for exotic Higgs boson decays H -> AA -> 4γ with events containing two merged diphotons in proton-proton collisions at √s= 13 TeV

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URI: https://hdl.handle.net/10902/32575
ISSN: 0031-9007
ISSN: 1079-7114
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Autoría
Tumasyan, A.; Brochero Cifuentes, Javier AndrésAutoridad Unican; Cabrillo Bartolomé, José IbanAutoridad Unican; Calderón Tazón, AliciaAutoridad Unican; Duarte Campderros, JorgeAutoridad Unican; Fernández García, MarcosAutoridad Unican; Fernández Madrazo, CeliaAutoridad Unican; García Alonso, Andrea; Gómez Gramuglio, GervasioAutoridad Unican; Lasaosa García, Clara; Martínez Rivero, Celso; Martínez Ruiz del Árbol, PabloAutoridad Unican; Matorras Weinig, FranciscoAutoridad Unican; Matorras Cuevas, PabloAutoridad Unican; Piedra Gómez, JonatanAutoridad Unican; Prieëls, Cedric; Ruiz Jimeno, AlbertoAutoridad Unican; Scodellaro, LucaAutoridad Unican; Vila Álvarez, Iván Autoridad Unican; [et al.]
Fecha
2023-09
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
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Physical Review Letters, 2023, 131(10), 101801
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American Physical Society
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Resumen/Abstract
We present the first direct search for exotic Higgs boson decays H → A, A → γγ in events with two photonlike objects. The hypothetical particle A is a low-mass spin-0 particle decaying promptly to a merged diphoton reconstructed as a single photonlike object. We analyze the data collected by the CMS experiment at √s = 13 TeV corresponding to an integrated luminosity of 136 fb−¹. No excess above the estimated background is found. We set upper limits on the branching fraction B(H → AA → 4γ) of (0.9–3.3) × 10−³ at 95% confidence level for masses of A in the range 0.1–1.2 GeV.
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.Excepto si se señala otra cosa, la licencia del ítem se describe como Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.