Search for beautiful tetraquarks in the Υ(1S)μ + μ − invariant-mass spectrum

The LHCb collaboration

doi:10.1007/JHEP10(2018)086

Search for beautiful tetraquarks in the Υ(1S)μ ⁺ μ ⁻ invariant-mass spectrum

The LHCb collaboration

Science Park 105
Universidade de Santiago de Compostela
University of Bristol
University of Michigan, Ann Arbor
Clermont-Auvergne University
University of Cincinnati
LNF-INFN
Fakultät Physik
University of Dortmund
European Organization for Nuclear Research
SUPA
University of Glasgow
University of Barcelona
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
Instituto de Biofisica da UFRJ
INFN
Laboratoire de l'Accélérateur Linéaire
Center for High Energy Physics
Tsinghua University
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Institute of Physics
ENAC-IIC-GEL
Sezione INFN di Ferrara
University of Ferrara
University of Maryland, College Park
School of Physics and Astronomy
University of Manchester
University of Heidelberg
Aix Marseille Université
Kurchatov Institute
Syracuse University
Yandex School of Data Analysis
Physik-Institut
University of Zurich
Sezione INFN di Cagliari
Department of Physics
University of Warwick
National University of Science and Technology “MISIS”
National Centre for Nuclear Research (NCBJ)

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

69 Citations (Scopus)

Résumé

The ϒ(1S)μ⁺μ⁻ invariant-mass distribution is investigated for a possible exotic meson state composed of two b quarks and two b¯ quarks, X_b _b¯ _b _b¯. The analysis is based on a data sample of pp collisions recorded with the LHCb detector at centre-of-mass energies s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 6.3 fb⁻¹. No significant excess is found, and upper limits are set on the product of the production cross-section and the branching fraction as functions of the mass of the X_b _b¯ _b _b¯ state. The limits are set in the fiducial volume where all muons have pseudorapidity in the range [2.0, 5.0], and the X_b _b¯ _b _b¯ state has rapidity in the range [2.0, 4.5] and transverse momentum less than 15 GeV/c.[Figure not available: see fulltext.].

langue originale	Anglais
Numéro d'article	86
journal	Journal of High Energy Physics
Volume	2018
Numéro de publication	10
Les DOIs	https://doi.org/10.1007/JHEP10(2018)086
état	Publié - 1 oct. 2018

Accès au document

10.1007/JHEP10(2018)086

Contient cette citation

@article{5e4b850a37e4403199ba4b9e20aedcd0,

title = "Search for beautiful tetraquarks in the Υ(1S)μ + μ − invariant-mass spectrum",

abstract = "The ϒ(1S)μ+μ− invariant-mass distribution is investigated for a possible exotic meson state composed of two b quarks and two b¯ quarks, Xb b¯ b b¯. The analysis is based on a data sample of pp collisions recorded with the LHCb detector at centre-of-mass energies s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 6.3 fb−1. No significant excess is found, and upper limits are set on the product of the production cross-section and the branching fraction as functions of the mass of the Xb b¯ b b¯ state. The limits are set in the fiducial volume where all muons have pseudorapidity in the range [2.0, 5.0], and the Xb b¯ b b¯ state has rapidity in the range [2.0, 4.5] and transverse momentum less than 15 GeV/c.[Figure not available: see fulltext.].",

keywords = "B physics, Exotics, Hadron-Hadron scattering (experiments), Heavy quark production",

author = "\{The LHCb collaboration\} and R. Aaij and B. Adeva and M. Adinolfi and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and S. Ali and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and F. Archilli and P. d{\textquoteright}Argent and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, \{J. J.\} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and S. Barsuk and W. Barter and F. Baryshnikov and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and J. Beddow and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2018, The Author(s).",

year = "2018",

month = oct,

day = "1",

doi = "10.1007/JHEP10(2018)086",

language = "English",

volume = "2018",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "10",

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TY - JOUR

T1 - Search for beautiful tetraquarks in the Υ(1S)μ + μ − invariant-mass spectrum

AU - The LHCb collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - d’Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battista, V.

AU - Bay, A.

AU - Beddow, J.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - The ϒ(1S)μ+μ− invariant-mass distribution is investigated for a possible exotic meson state composed of two b quarks and two b¯ quarks, Xb b¯ b b¯. The analysis is based on a data sample of pp collisions recorded with the LHCb detector at centre-of-mass energies s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 6.3 fb−1. No significant excess is found, and upper limits are set on the product of the production cross-section and the branching fraction as functions of the mass of the Xb b¯ b b¯ state. The limits are set in the fiducial volume where all muons have pseudorapidity in the range [2.0, 5.0], and the Xb b¯ b b¯ state has rapidity in the range [2.0, 4.5] and transverse momentum less than 15 GeV/c.[Figure not available: see fulltext.].

AB - The ϒ(1S)μ+μ− invariant-mass distribution is investigated for a possible exotic meson state composed of two b quarks and two b¯ quarks, Xb b¯ b b¯. The analysis is based on a data sample of pp collisions recorded with the LHCb detector at centre-of-mass energies s=7, 8 and 13 TeV, corresponding to an integrated luminosity of 6.3 fb−1. No significant excess is found, and upper limits are set on the product of the production cross-section and the branching fraction as functions of the mass of the Xb b¯ b b¯ state. The limits are set in the fiducial volume where all muons have pseudorapidity in the range [2.0, 5.0], and the Xb b¯ b b¯ state has rapidity in the range [2.0, 4.5] and transverse momentum less than 15 GeV/c.[Figure not available: see fulltext.].

KW - B physics

KW - Exotics

KW - Hadron-Hadron scattering (experiments)

KW - Heavy quark production

U2 - 10.1007/JHEP10(2018)086

DO - 10.1007/JHEP10(2018)086

M3 - Article

AN - SCOPUS:85055288113

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 86

ER -

Search for beautiful tetraquarks in the Υ(1S)μ + μ − invariant-mass spectrum

Résumé

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Empreinte digitale

Contient cette citation

Search for beautiful tetraquarks in the Υ(1S)μ ⁺ μ ⁻ invariant-mass spectrum