2026-10-19T02:18:24Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/103102026-10-18T20:25:32Zopenairedrivercom_ebyu_10000col_ebyu_10001

Search for b-hadron decays to long-lived particles in the CMS endcap muon detectorsHayrapetyan, A.Makarenko, V.Tumasyan, A.Adam, W.Andrejkovic, J.W.Benato, L.Bergauer, T.Dragicevic, M.Giordano, C.Hussain, P.S.Jeitler, M.Krammer, N.Li, A.Liko, D.Matthewman, M.Mikulec, I.Schieck, J.Schöfbeck, R.Schwarz, D.Shooshtari, M.Sonawane, M.Waltenberger, W.Wulz, C.-E.Janssen, T.Kwon, H.Henao, D. OcampoVan Laer, T.Van Mechelen, P.Bierkens, J.Breugelmans, N.D’Hondt, J.Dansana, S.De Moor, A.Delcourt, M.Heyen, F.Hong, Y.Kashko, P.Lowette, S.Makarenko, I.Müller, D.Song, J.Tavernier, S.Tytgat, M.Van Onsem, G.P.Van Putte, S.Vannerom, D.Bilin, B.Clerbaux, B.Das, A.K.De Bruyn, I.A search for long-lived particles originating from the decay of b hadrons produced in proton-proton collisions with a center-of-mass energy of 13 TeV at the LHC is presented. The analysis is performed on a dataset recorded in 2018, corresponding to an integrated luminosity of 41.6 fb-1. Interactions of the long-lived particles in the CMS endcap muon system would create hadronic or electromagnetic showers, producing clusters of detector hits. Selected events contain at least one such high-multiplicity cluster in the muon endcaps and require the presence of a displaced muon. The most stringent upper limits to date on the branching fraction B(B - ΚΦ), where the long-lived particle Φ decays to a pair of hadrons, are obtained for Φ masses of 0.3-3.0 GeV and Φ mean proper decay lengths in the range of 1-500 cm. © 2026 CERN, for the CMS CollaborationAmerican Physical Society2026Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/10310https://doi.org/10.1103/7ldn-snzn2470-0010enPhysical Review Dinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/10310