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

LHCb collaboration; R.H. O'Neil; M. Richardson-Slipper; C. Vrahas

doi:10.1007/JHEP07(2023)198

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

LHCb collaboration, R.H. O'Neil, M. Richardson-Slipper, C. Vrahas

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	198
Pages (from-to)	1-25
Number of pages	25
Journal	Journal of High Energy Physics
Volume	2023
Issue number	7
DOIs	https://doi.org/10.1007/JHEP07(2023)198
Publication status	Published - 26 Jul 2023

Keywords / Materials (for Non-textual outputs)

B Physics
Hadron-Hadron Scattering
QCD
Spectroscopy

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10.1007/JHEP07(2023)198Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2208.08660

3 Finished
4 Active

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/04/23 → 30/09/25
Project: Research
Next generation photodetectors for future applications
Oliva, F. (Principal Investigator)
1/12/22 → 30/11/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/10/22 → 30/09/25
Project: Research

Cite this

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title = "Study of B+c meson decays to charmonia plus multihadron final states",

abstract = "Four decay modes of the B+c meson into a J/ψ meson and multiple chargedkaons 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 confirmedusing the ψ(2S) → J/ψπ+π− decay mode. Ratios of the branching fractions of these four B+c decay channels are measured.",

keywords = "B Physics, Hadron-Hadron Scattering, QCD, Spectroscopy",

author = "{LHCb collaboration} and William Barter and P.E.L. Clarke and S. Gambetta and F. Muheim and M. Needham and Mark Williams and Federico Betti and Robert Currie and S. Eisenhardt and Lavra, {Lais Soares} and Oliva Federica and Ozlem Ozcelik and Gediminas Sarpis and R.H. O'Neil and M. Richardson-Slipper and C. Vrahas",

year = "2023",

month = jul,

day = "26",

doi = "10.1007/JHEP07(2023)198",

language = "English",

volume = "2023",

pages = "1--25",

journal = " Journal of High Energy Physics",

issn = "1029-8479",

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TY - JOUR

T1 - Study of B+c meson decays to charmonia plus multihadron final states

AU - LHCb collaboration

AU - Barter, William

AU - Clarke, P.E.L.

AU - Gambetta, S.

AU - Muheim, F.

AU - Needham, M.

AU - Williams, Mark

AU - Betti, Federico

AU - Currie, Robert

AU - Eisenhardt, S.

AU - Lavra, Lais Soares

AU - Federica, Oliva

AU - Ozcelik, Ozlem

AU - Sarpis, Gediminas

AU - O'Neil, R.H.

AU - Richardson-Slipper, M.

AU - Vrahas, C.

PY - 2023/7/26

Y1 - 2023/7/26

N2 - Four decay modes of the B+c meson into a J/ψ meson and multiple chargedkaons 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 confirmedusing the ψ(2S) → J/ψπ+π− decay mode. Ratios of the branching fractions of these four B+c decay channels are measured.

AB - Four decay modes of the B+c meson into a J/ψ meson and multiple chargedkaons 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 confirmedusing the ψ(2S) → J/ψπ+π− decay mode. Ratios of the branching fractions of these four B+c decay channels are measured.

KW - B Physics

KW - Hadron-Hadron Scattering

KW - QCD

KW - Spectroscopy

U2 - 10.1007/JHEP07(2023)198

DO - 10.1007/JHEP07(2023)198

M3 - Article

SN - 1029-8479

VL - 2023

SP - 1

EP - 25

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 198

ER -

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

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Experimental Particle Physics at the University of Edinburgh

Next generation photodetectors for future applications

Experimental Particle Physics at the University of Edinburgh

Cite this