Four decay modes of the B-c(+) meson into a J/psi 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 13TeV and corresponding to an integrated luminosity of 9 fb(-1). The decay B-c(+) -> J/psi K+ K- pi(+)pi(+)pi(-) is observed for the first time, and evidence for the B-c(+) -> J/psi 4 pi(+)3 pi(-) decay is found. The decay B-c(+) -> J/psi 3 pi(+)2 pi(-) is observed and the previous observation of the B-c(+) -> psi(2S)pi(+)pi(+)pi(-) decay is confirmed using the psi(2S) -> J/psi pi(+)pi(-) decay mode. Ratios of the branching fractions of these four B-c(+) decay channels are measured.

Null, N., Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., et al. (2023). Study of $$ {B}_c^{+} $$ meson decays to charmonia plus multihadron final states. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7) [10.1007/jhep07(2023)198].

Study of $$ {B}_c^{+} $$ meson decays to charmonia plus multihadron final states

Borsato, M.;Calvi, M.;Capelli, S.;Carniti, P.;Fazzini, D.;García Pardiñas, J.;Gotti, C.;Kirsebom, V. S.;Martinazzoli, L.;Martinelli, M.;Meloni, S.;Minotti, A.;Petruzzo, M.;Pizzichemi, M.;Salomoni, M.;Shields, E. B.;
2023

Abstract

Four decay modes of the B-c(+) meson into a J/psi 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 13TeV and corresponding to an integrated luminosity of 9 fb(-1). The decay B-c(+) -> J/psi K+ K- pi(+)pi(+)pi(-) is observed for the first time, and evidence for the B-c(+) -> J/psi 4 pi(+)3 pi(-) decay is found. The decay B-c(+) -> J/psi 3 pi(+)2 pi(-) is observed and the previous observation of the B-c(+) -> psi(2S)pi(+)pi(+)pi(-) decay is confirmed using the psi(2S) -> J/psi pi(+)pi(-) decay mode. Ratios of the branching fractions of these four B-c(+) decay channels are measured.
Articolo in rivista - Articolo scientifico
B Physics; Hadron-Hadron Scattering; QCD; Spectroscopy
English
26-lug-2023
2023
2023
7
none
Null, N., Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., et al. (2023). Study of $$ {B}_c^{+} $$ meson decays to charmonia plus multihadron final states. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7) [10.1007/jhep07(2023)198].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/468902
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