A search is performed for massive long-lived particles (LLPs) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the first, a Higgs-like boson with mass from 30 to 200 GeV/c^2 is produced by gluon fusion and decays into two LLPs. The analysis covers LLP mass values from 10 GeV/c^2 up to about one half the Higgs-like boson mass. The second LLP production mode is directly from quark interactions, with LLP masses from 10 to 90 GeV/c^2. The LLP lifetimes considered range from 5 to 200 ps. This study uses LHCb data collected from proton-proton collisions at √s = 13 TeV, corresponding to an integrated luminosity of 5.4 fb^−1. No evidence of these long-lived states has been observed, and upper limits on the production cross-section times branching ratio have been set for each model considered.

Aaij, R., Abdelmotteleb, A., Abellán Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2022). Search for Massive Long-Lived Particles Decaying Semileptonically at √s = 13 TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 82(4), 1-19 [10.1140/epjc/s10052-022-10186-3].

Search for Massive Long-Lived Particles Decaying Semileptonically at √s = 13 TeV

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Maccolini, S.;Manuzzi, D.;Patrignani, C.;Villa, A.;Zucchelli, S.;
2022

Abstract

A search is performed for massive long-lived particles (LLPs) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the first, a Higgs-like boson with mass from 30 to 200 GeV/c^2 is produced by gluon fusion and decays into two LLPs. The analysis covers LLP mass values from 10 GeV/c^2 up to about one half the Higgs-like boson mass. The second LLP production mode is directly from quark interactions, with LLP masses from 10 to 90 GeV/c^2. The LLP lifetimes considered range from 5 to 200 ps. This study uses LHCb data collected from proton-proton collisions at √s = 13 TeV, corresponding to an integrated luminosity of 5.4 fb^−1. No evidence of these long-lived states has been observed, and upper limits on the production cross-section times branching ratio have been set for each model considered.
2022
Aaij, R., Abdelmotteleb, A., Abellán Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2022). Search for Massive Long-Lived Particles Decaying Semileptonically at √s = 13 TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 82(4), 1-19 [10.1140/epjc/s10052-022-10186-3].
Aaij, R.; Abdelmotteleb, A.S.W.; Abellán Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/900404
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