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

LHCb Collaboration

doi:10.1007/JHEP10(2018)086

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

LHCb Collaboration

Physics and Astronomy

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

17 Citations (Scopus)

125 Downloads (Pure)

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, 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.].

Original language	English
Article number	86
Journal	Journal of High Energy Physics
Volume	2018
Issue number	10
Early online date	12 Oct 2018
DOIs	https://doi.org/10.1007/JHEP10(2018)086
Publication status	E-pub ahead of print - 12 Oct 2018

Bibliographical note

The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 86. https://doi.org/10.1007/JHEP10(2018)086

Keywords

B physics
Exotics
Hadron-Hadron scattering (experiments)
Heavy quark production

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP10(2018)086Licence: Creative Commons: Attribution (CC BY)

Aaij_et_al_Search_for_beauthiful_tetraquarks_Journal_of_High_Energy_Physics_2018
Published in Journal of High Energy Physics on 12/10/2018 https://doi.org/10.1007/JHEP10(2018)086
Final published version, 779 KBLicence: Creative Commons: Attribution (CC BY)

Cite this

@article{175606f697104266866f230e1d8e15a0,

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 = "{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. Bifani and R. Calladine and G. Chatzikonstantinidis and N. Farley and P. Griffith and P. Ilten and C. Lazzeroni and A. Mazurov and L. Pescatore and J. Plews and D. Popov and A. Sergi and M. Wang and Watson, {N. K.} and Zarebski, {K. A.}",

note = "The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 86. https://doi.org/10.1007/JHEP10(2018)086",

year = "2018",

month = oct,

day = "12",

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

language = "English",

volume = "2018",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "10",

}

TY - JOUR

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

AU - 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 - Bifani, S.

AU - Calladine, R.

AU - Chatzikonstantinidis, G.

AU - Farley, N.

AU - Griffith, P.

AU - Ilten, P.

AU - Lazzeroni, C.

AU - Mazurov, A.

AU - Pescatore, L.

AU - Plews, J.

AU - Popov, D.

AU - Sergi, A.

AU - Wang, M.

AU - Watson, N. K.

AU - Zarebski, K. A.

N1 - The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 86. https://doi.org/10.1007/JHEP10(2018)086

PY - 2018/10/12

Y1 - 2018/10/12

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

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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

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