Four decay modes of the Bc+ meson into a J/ψ meson and multiple charged kaons or pions are studied using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb^−1. The decay Bc+ → J/ψ K+ K− π+ π+ π− is observed for the first time, and evidence for the Bc+ → J/ψ 4π+ 3π− decay is found. The decay Bc+ → J/ψ 3π+ 2π− is observed and the previous observation of the Bc+ → ψ(2S) π+ π+ π− decay is confirmed using the ψ(2S) → J/ψ π+ π− decay mode. Ratios of the branching fractions of these four Bc+ decay channels are measured.

Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Study of Bc+ Meson Decays to Charmonia plus Multihadron Final States. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7), 0-25 [10.1007/jhep07(2023)198].

Study of Bc+ Meson Decays to Charmonia plus Multihadron Final States

Carbone, A.;Ferrari, F.;Galli, D.;Manuzzi, D.;Patrignani, C.;Spedicato, E.;Villa, A.;Zucchelli, S.;
2023

Abstract

Four decay modes of the Bc+ meson into a J/ψ meson and multiple charged kaons or pions are studied using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb^−1. The decay Bc+ → J/ψ K+ K− π+ π+ π− is observed for the first time, and evidence for the Bc+ → J/ψ 4π+ 3π− decay is found. The decay Bc+ → J/ψ 3π+ 2π− is observed and the previous observation of the Bc+ → ψ(2S) π+ π+ π− decay is confirmed using the ψ(2S) → J/ψ π+ π− decay mode. Ratios of the branching fractions of these four Bc+ decay channels are measured.
2023
Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Study of Bc+ Meson Decays to Charmonia plus Multihadron Final States. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7), 0-25 [10.1007/jhep07(2023)198].
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/952443
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