Search for supersymmetric partners of electrons and muons in proton–proton collisions at √s = 13 TeV
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Issue Date
2019-03-10Author
Sirunyan, A.M.
Publisher
Elsevier
Type
Article
Article Version
Scholarly/refereed, publisher version
Rights
© 2019 The Author(s). Published by Elsevier B.V.
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A search for direct production of the supersymmetric (SUSY) partners of electrons or muons is presented in final states with two opposite-charge, same-flavour leptons (electrons and muons), no jets, and large missing transverse momentum. The data sample corresponds to an integrated luminosity of 35.9 fb−1 of proton–proton collisions at √s = 13 TeV, collected with the CMS detector at the LHC in 2016. The search uses the MT2 variable, which generalises the transverse mass for systems with two invisible objects and provides a discrimination against standard model backgrounds containing W bosons. The observed yields are consistent with the expectations from the standard model. The search is interpreted in the context of simplified SUSY models and probes slepton masses up to approximately 290, 400, and 450 GeV, assuming right-handed only, left-handed only, and both right- and left-handed sleptons (mass degenerate selectrons and smuons), and a massless lightest supersymmetric particle. Limits are also set on selectrons and smuons separately. These limits show an improvement on the existing limits of approximately 150 GeV.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
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Citation
A.M. Sirunyan et al., "Search for supersymmetric partners of electrons and muons in proton–proton collisions at s=13TeV", Physics Letters B, Volume 790, 2019, Pages 140-166, ISSN 0370-2693,
https://doi.org/10.1016/j.physletb.2019.01.005.
(http://www.sciencedirect.com/science/article/pii/S0370269319300218)
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