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A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV
Sirunyan, A.M. Sanders, Stephen J. The CMS Collaboration
Sirunyan, A.M.
Sanders, Stephen J.
The CMS Collaboration
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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 35.9 fb−1 of proton-proton collisions at a center-of mass energy √s = 13 TeV, 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.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
Date
2019-09-10
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Elsevier
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Keywords
CMS, New light boson, Supersymmetry, Hidden sector, Dark photon, Muons
Citation
A.M. Sirunyan et al., "A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV", Physics Letters B, Volume 796, 2019, Pages 131-154, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2019.07.013.
(http://www.sciencedirect.com/science/article/pii/S0370269319304691)