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.

Search for b -hadron decays to long-lived particles in the CMS endcap muon detectors

Calzaferri, S.
Membro del Collaboration Group
;
Montagna, P.
Membro del Collaboration Group
;
Pelliccioni, M.
Membro del Collaboration Group
;
Riccardi, C.
Membro del Collaboration Group
;
Salvini, P.
Membro del Collaboration Group
;
Vai, I.
Membro del Collaboration Group
;
Vitulo, P.
Membro del Collaboration Group
;
2026-01-01

Abstract

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
Esperti anonimi
Inglese
Internazionale
ELETTRONICO
113
1
https://journals.aps.org/prd/abstract/10.1103/7ldn-snzn
2427
info:eu-repo/semantics/article
262
Hayrapetyan, A.; Makarenko, V.; Tumasyan, A.; Adam, W.; Andrejkovic, J.  w.; Benato, L.; Bergauer, T.; Dragicevic, M.; Giordano, C.; Hussain, P.  s.; ...espandi
1 Contributo su Rivista::1.1 Articolo in rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/1551735
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