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

Abstract: We present the first direct search for exotic Higgs boson decays H -> AA, A -> yy 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 ffiffiffi s p ¼ 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 -> 4y) of (0.9-3.3) × 10-3 at 95% confidence level for masses of A in the range 0.1-1.2 GeV.

Authorship: Tumasyan A., Adam W., Andrejkovic J.W., Bergauer T., Chatterjee S., Damanakis K., Dragicevic M., Escalante Del Valle A., Hussain P.S., Jeitler M., Krammer N., Lechner L., Liko D., Mikulec I., Paulitsch P., Pitters F.M., Schieck J., Schöfbeck R., Schwarz D., Templ S., Waltenberger W., Wulz C.E., Darwish M.R., Janssen T., Kello T., Rejeb Sfar H., Van Mechelen P., Bols E.S., D’Hondt J., De Moor A., Delcourt M., El Faham H., Lowette S.,

Fuente: Physical Review Letters, 2023, 131(10), 101801

Publisher: American Physical Society

Publication date: 01/09/2023

No. of pages: 19

Publication type: Article

DOI: 10.1103/PhysRevLett.131.101801

ISSN: 0031-9007,1079-7114

Publication Url: https://doi.org/10.1103/PhysRevLett.131.101801

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