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Search for long-lived particles decaying to leptons with large impact parameter in proton–proton collisions at √s=13TeV
CMS Collaboration
CMS Collaboration
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Abstract
A search for new long-lived particles decaying to leptons using proton–proton collision data produced by the CERN LHC at s√=13TeV is presented. Events are selected with two leptons (an electron and a muon, two electrons, or two muons) that both have transverse impact parameter values between 0.01 and 10cm and are not required to form a common vertex. Data used for the analysis were collected with the CMS detector in 2016, 2017, and 2018, and correspond to an integrated luminosity of 118 (113)fb−1 in the ee channel (eμ and μμ channels). The search is designed to be sensitive to a wide range of models with displaced eμ, ee, and μμ final states. The results constrain several well-motivated models involving new long-lived particles that decay to displaced leptons. For some areas of the available phase space, these are the most stringent constraints to date.
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2022-02-17
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Public Library of Science
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CMS_2022_Feb.pdf
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Tumasyan, A., Adam, W., Andrejkovic, J.W. et al. Search for long-lived particles decaying to leptons with large impact parameter in proton–proton collisions at s√=13TeV. Eur. Phys. J. C 82, 153 (2022). https://doi.org/10.1140/epjc/s10052-022-10027-3