Model-independent search for pair production of new bosons decaying into muons in proton-proton collisions at √s=13 TeV

(CMS Collaboration) Hayrapetyan, A.; Tumasyan, A.; ..., ...; Giljanović, Duje; Godinović, Nikola; Lelas, Damir; Šćulac, Ana; Kovač, Marko; Petković, Andro; Bargassa, Pedrame; Brigljević, Vuko; Chitroda, Bhakti Kanulal; Ferenček, Dinko; Jakovčić, Krešimir; Mishra, Saswat; Starodumov, Andrey; Šuša, Tatjana; ..., ...; Makarenko, V. (2024) Model-independent search for pair production of new bosons decaying into muons in proton-proton collisions at √s=13 TeV. Journal of High Energy Physics, 12 . ISSN 1029-8479

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Abstract

The results of a model-independent search for the pair production of new bosons within a mass range of 0.21 < m < 60 GeV, are presented. This study utilizes events with a four-muon final state. We use two data sets, comprising 41.5 fb(-1) and 59.7 fb(-1) of proton-proton collisions at root s = 13TeV, recorded in 2017 and 2018 by the CMS experiment at the CERN LHC. The study of the 2018 data set includes a search for displaced signatures of a new boson within the proper decay length range of 0 < c tau < 100mm. Our results are combined with a previous CMS result, based on 35.9 fb(-1) of proton-proton collisions at root s = 13TeV collected in 2016. No significant deviation from the expected background is observed. Results are presented in terms of a model-independent upper limit on the product of cross section, branching fraction, and acceptance. The findings are interpreted across various benchmark models, such as an axion-like particle model, a vector portal model, the next-to-minimal supersymmetric standard model, and a dark supersymmetric scenario, including those predicting a non-negligible proper decay length of the new boson. In all considered scenarios, substantial portions of the parameter space are excluded, expanding upon prior results.

Item Type:	Article
Uncontrolled Keywords:	Beyond Standard Model; Hadron-Hadron Scattering
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Division of Experimental Physics
Depositing User:	Virna Brumnić
Date Deposited:	07 Apr 2026 10:56
URI:	http://fulir.irb.hr/id/eprint/11594
DOI:	10.1007/JHEP12(2024)172

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