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Study of B+c meson decays to charmonia plus multihadron final states

Four decay modes of the $$ {B}_c^{+} $$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 $$ {B}_...

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Main Authors: Aaij, Roel (Author) , Archilli, Flavio (Author) , Bachmann, Sebastian (Author) , Berninghoff, Daniel (Author) , Borsato, Martino (Author) , Caspary, Rowina (Author) , Frau, Giulia (Author) , Gerick, David (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Li, Peilian (Author) , Marks, Jörg (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Witola, Lukas (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 26 July 2023
In: Journal of high energy physics
Year: 2023, Issue: 7, Pages: 1-26
ISSN:1029-8479
DOI:10.1007/JHEP07(2023)198
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP07(2023)198
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Author Notes:The LHCb collaboration*
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Summary:Four decay modes of the $$ {B}_c^{+} $$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 $$ {B}_c^{+} $$ → J/ψK+K−π+π+π− is observed for the first time, and evidence for the $$ {B}_c^{+} $$ → J/ψ4π+3π− decay is found. The decay $$ {B}_c^{+} $$ → J/ψ3π+2π− is observed and the previous observation of the $$ {B}_c^{+} $$ → 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 $$ {B}_c^{+} $$decay channels are measured.
Item Description:*The LHCb collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, R. Caspary, G. Frau, D. Gerick, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, J. Marks, D.J. Unverzagt, U. Uwer, C. Witola, A. Zhelezov (und sehr viele weitere Personen)
Im Titel ist Pluszeichen hoch- und der Buchstabe "c" tiefgestellt
Gesehen am 22.05.2024
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP07(2023)198

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