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A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV

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2019
1-s2.0-S0370269319304691-main.pdf (1.195Mb)
Authors
Sirunyan, A M
Tumasyan, A
Adam, W
Ambrogi, F
Asilar, E
Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Đorđević, Miloš
Milošević, Jovan
Contributors
CMS Collaboration
CMS Collaboration (ukupan broj autora: 2293)
Article (Published version)
,
© 2019 The Author(s)
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Abstract
A search for new light bosons decaying into muon pairs is presented using a data sample corresponding to an integrated luminosity of 35.9fb−1 of proton-proton collisions at a center-of-mass energy s=13TeV, collected with the CMS detector at the CERN LHC. The search is model independent, only requiring the pair production of a new light boson and its subsequent decay to a pair of muons. No significant deviation from the predicted background is observed. A model independent limit is set on the product of the production cross section times branching fraction to dimuons squared times acceptance as a function of new light boson mass. This limit varies between 0.15 and 0.39 fb over a range of new light boson masses from 0.25 to 8.5 GeV. It is then interpreted in the context of the next-to-minimal supersymmetric standard model and a dark supersymmetry model that allows for nonnegligible light boson lifetimes. In both cases, there is significant improvement over previously published limits. © ...2019 The Author(s)

Source:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2019, 796, 131-154

DOI: 10.1016/j.physletb.2019.07.013

ISSN: 0370-2693

WoS: 000483426200022

Scopus: 2-s2.0-85069577352
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URI
http://vinar.vin.bg.ac.rs/handle/123456789/8417
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