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/ψK+K−π+π+π− is observed for the first time, and evidence for the Bc+→ J/ψ4π+3π− decay is found. The decay Bc+→ J/ψ3π+2π− is observed and the previous observation of the Bc+→ ψ(2S)π+π+π− decay is confirmed using the ψ(2S) → J/ψπ+π− decay mode. Ratios of the branching fractions of these four Bc+ decay channels are measured.

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

Study of Bc+ 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 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/ψK+K−π+π+π− is observed for the first time, and evidence for the Bc+→ J/ψ4π+3π− decay is found. The decay Bc+→ J/ψ3π+2π− is observed and the previous observation of the Bc+→ ψ(2S)π+π+π− decay is confirmed using the ψ(2S) → J/ψπ+π− decay mode. Ratios of the branching fractions of these four Bc+ decay channels are measured.
Articolo in rivista - Articolo scientifico
B Physics; Hadron-Hadron Scattering; QCD; Spectroscopy;
English
26-lug-2023
2023
2023
7
open
Null, N., Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., et al. (2023). Study of Bc+ meson decays to charmonia plus multihadron final states. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7) [10.1007/jhep07(2023)198].
File in questo prodotto:
File Dimensione Formato  
10281-468902_VoR.pdf

accesso aperto

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Licenza: Creative Commons
Dimensione 934 kB
Formato Adobe PDF
934 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/468902
Citazioni
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
Social impact