Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays

The LHCb collaboration

doi:10.1007/JHEP04(2022)046

Study of charmonium and charmonium-like contributions in B⁺ → J/ψηK⁺ decays

The LHCb collaboration

Science Park 105
University of Warwick
Physik-Institut der Universität Zürich
University of Liverpool
Universidade de Santiago de Compostela
University of Bristol
Clermont-Auvergne University
Sorbonne Université
University of Michigan, Ann Arbor
Sezione INFN di Milano
University of Cincinnati
University of Dortmund
European Organization for Nuclear Research
University of Glasgow
University of Barcelona
University of Manchester
Petersburg Nuclear Physics Institute (PNPI)
University of Cambridge
Instituto de Biofisica da UFRJ
Université Paris-Saclay
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Sezione INFN di Ferrara
University of Chinese Academy of Sciences
University of Heidelberg
Kurchatov Institute
Syracuse University
Yandex School of Data Analysis
Aix Marseille Université
ENAC-IIC-GEL
Centro Brasileiro de Pesquisas Fisicas
University of Florence
Imperial College London
National University of Science and Technology “MISIS”
RWTH Aachen University
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Institute of High Energy Physics, Chinese Academy of Sciences
Sezione INFN di Cagliari
Moscow State University
Institute for Theoretical and Experimental Physics
LNF-INFN
University of Padova
Institute for Nuclear Physics
Wuhan University
University of Birmingham
University of Modena and Reggio Emilia
University of Oxford
National Research University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
University of Maryland, College Park
South China Normal University
Institute for Nuclear Research of the Russian Academy of Sciences
University of Ferrara
INFN Sezione di Milano-Bicocca
University of Milano-Bicocca
Universitat Ramon LLull - CSIC
INFN Sezione di Bologna
University of Bologna
INFN Roma Tor Vergata
University of Rome “Tor Vergata”
Sezione di Genova
University of Genoa
Université Savoie Mont Blanc
Tsinghua University
University of Edinburgh
Horia Hulubei National Institute of Physics and Nuclear Engineering
INFN Sezione di Bari
Università degli studi di Bari Aldo Moro
Massachusetts Institute of Technology
MST-8, Los Alamos National Laboratory
Hunan University
ICS/University of Groningen
Maastricht University
Universitá di Cagliari
Eötvös Loránd University
Institute of Nuclear Research, National Academy of Sciences in Ukraine
University College Dublin
Kharkov Institute of Physics and Technology
INFN Sezione di Perugia
CCLRC Rutherford Appleton Laboratory
Monash University
Novosibirsk State University
Uppsala University
Agh University of Science and Technology Faculty of Computer Science
State Key Laboratory of Nuclear Physics and Technology
National Centre for Nuclear Research (NCBJ)
Pontifícia Universidade Católica do Rio de Janeiro
Universidade Federal Do Triângulo Mineiro (UFTM)
Central China Normal University
University of Valencia
Vrije Universiteit Amsterdam
National Research Tomsk Polytechnic University
Scuola Normale Superiore di Pisa
Kurchatov Institute
University of Milano
Iligan Institute of Technology (IIT)
Sezione di Roma
University Bonn
Technische Universität München
Universidad Nacional de Colombia
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Pisa
Università degli Studi della Basilicata
Max-Planck-Institut für Kernphysik
University of Urbino Carlo Bo
Universität Rostock

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

A study of B⁺→ J/ψηK⁺ decays, followed by J/ψ → μ⁺μ⁻ and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb⁻¹. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B⁺→ (ψ₂(3823) → J/ψη)K⁺ and B⁺→ (ψ(4040) → J/ψη)K⁺ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ₂(3823) → J/ψη decay. [Figure not available: see fulltext.]

langue originale	Anglais
Numéro d'article	46
journal	Journal of High Energy Physics
Volume	2022
Numéro de publication	4
Les DOIs	https://doi.org/10.1007/JHEP04(2022)046
état	Publié - 1 avr. 2022

Accès au document

10.1007/JHEP04(2022)046

Contient cette citation

@article{845f283ed094453fa1d6d049a037373f,

title = "Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays",

abstract = "A study of B+→ J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B+→ (ψ2(3823) → J/ψη)K+ and B+→ (ψ(4040) → J/ψη)K+ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ2(3823) → J/ψη decay. [Figure not available: see fulltext.]",

keywords = "B Physics, Branching fraction, Hadron-Hadron Scattering, Quarkonium",

author = "\{The LHCb collaboration\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abell{\'a}n Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and G. Alkhazov and \{Alvarez Cartelle\}, P. and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and M. Andreotti and D. Ao and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Baptista de Souza Leite\}, J. and M. Barbetti and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = apr,

day = "1",

doi = "10.1007/JHEP04(2022)046",

language = "English",

volume = "2022",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

number = "4",

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TY - JOUR

T1 - Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays

AU - The LHCb collaboration

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellán Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista de Souza Leite, J.

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2022/4/1

Y1 - 2022/4/1

N2 - A study of B+→ J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B+→ (ψ2(3823) → J/ψη)K+ and B+→ (ψ(4040) → J/ψη)K+ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ2(3823) → J/ψη decay. [Figure not available: see fulltext.]

AB - A study of B+→ J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B+→ (ψ2(3823) → J/ψη)K+ and B+→ (ψ(4040) → J/ψη)K+ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ2(3823) → J/ψη decay. [Figure not available: see fulltext.]

KW - B Physics

KW - Branching fraction

KW - Hadron-Hadron Scattering

KW - Quarkonium

U2 - 10.1007/JHEP04(2022)046

DO - 10.1007/JHEP04(2022)046

M3 - Article

AN - SCOPUS:85134072648

SN - 1126-6708

VL - 2022

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 46

ER -

Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays

Résumé

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Contient cette citation

Study of charmonium and charmonium-like contributions in B⁺ → J/ψηK⁺ decays