A search for new long-lived particles decaying to leptons using proton-proton collision data produced by the CERN LHC at s=13Te 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 ( 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.
Search for long-lived particles decaying to leptons with large impact parameter in proton-proton collisions at s=13Te / Tumasyan, A; Adam, W; Andrejkovic, J W; Bergauer, T; Chatterjee, S; Damanakis, K; Dragicevic, M; Valle, A Escalante Del; Frühwirth, R; Jeitler, M; Krammer, N; Lechner, L; Liko, D; Mikulec, I; Paulitsch, P; Pitters, F M; Schieck, J; Schöfbeck, R; Schwarz, D; Templ, S; Waltenberger, W; Wulz, C-E; Chekhovsky, V; Litomin, A; Makarenko, V; Darwish, M R; De Wolf, E A; Janssen, T; Kello, T; Lelek, A; Sfar, H Rejeb; Van Mechelen, P; Van Putte, S; Remortel, N Van; Blekman, F; Bols, E S; D'Hondt, J; Delcourt, M; El Faham, H; Lowette, S; Moortgat, S; Morton, A; Müller, D; Sahasransu, A R; Tavernier, S; Van Doninck, W; Beghin, D; Bilin, B; Clerbaux, B; De Lentdecker, G; Favart, L; Grebenyuk, A; Kalsi, A K; Lee, K; Mahdavikhorrami, M; Makarenko, I; Moureaux, L; Pétré, L; Popov, A; Postiau, N; Starling, E; Thomas, L; Bemden, M Vanden; Velde, C Vander; Vanlaer, P; Cornelis, T; Dobur, D; 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C, PARTICLES AND FIELDS. - ISSN 1434-6044. - ELETTRONICO. - 82:(2022), pp. 0-0. [10.1140/epjc/s10052-022-10027-3]
Search for long-lived particles decaying to leptons with large impact parameter in proton-proton collisions at s=13Te
Ceccarelli, R;Ciulli, V;D'Alessandro, R;Focardi, E;Latino, G;Lenzi, P;Lizzo, M;Seidita, R;
2022
Abstract
A search for new long-lived particles decaying to leptons using proton-proton collision data produced by the CERN LHC at s=13Te 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 ( 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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