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Search for long-lived particles decaying to leptons with large impact parameter in proton–proton collisions at √s = 13 TeV A. Tumasyan, W. Adam, J. W. Andrejkovic [et al.]

Contributor(s): Tumasyan, Armen | Adam, Wolfgang | Andrejkovic, Janik Walter | Borshch, Vladislav | Ivanchenko, Vladimir | Tcherniaev, EvgueniMaterial type: ArticleArticleContent type: Текст Media type: электронный Subject(s): протон-протонные столкновения | долгоживущие частицы | лептоныGenre/Form: статьи в журналах Online resources: Click here to access online In: The European physical journal C Vol. 82, № 2. P. 153 (1-32)Abstract: A search for new long-lived particles decaying to leptons using proton-proton collision data produced by the CERN LHC at root s = 13 TeV 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 10 cm 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 (e mu and mu mu channels). The search is designed to be sensitive to a wide range of models with displaced e mu ee, and mu mu 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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Библиогр.: 72 назв.

A search for new long-lived particles decaying to leptons using proton-proton collision data produced by the CERN LHC at root s = 13 TeV 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 10 cm 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 (e mu and mu mu channels). The search is designed to be sensitive to a wide range of models with displaced e mu ee, and mu mu 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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