Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

684662.pdf (778.67 KB)

Document type

Article

Version

Published version

Publication date

2018

Publication license

cc-by (c) The LHCb collaboration (Alfonso Albero, A. et al., 2018
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/185382

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

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

https://doi.org/10.1007/JHEP10(2018)086

Abstract

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, Xbbbb . 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 Xbbbb state. The limits are set in the fiducial volume where all muons have pseudorapidity in the range [2.0, 5.0], and the Xbbbb state has rapidity in the range [2.0, 4.5] and transverse momentum less than 15 GeV/c. Keywords: B physics, Exotics, Hadron-Hadron scattering (experiments), Heavy quark production

Subject

Hadrons, Gran Col·lisionador d'Hadrons, Física de partícules, Experiments

Subject (English)

Hadrons, Large Hadron Collider (France and Switzerland), Particle physics, Experiments

Citation

Collections

Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

ALFONSO ALBERO, Alejandro, et al. Search for beautiful tetraquarks in the ϒ(1S)μ + μ − invariant-mass spectrum. Journal of High Energy Physics. 2018. Vol. 2018, num. 10, pags. 1-22. ISSN 1126-6708. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/185382

Export metadata

JSON - METS

Share record