Phys. Rev. D 84, 094023 (2011) - Production of $J/\ensuremath{\psi}$-meson pairs and $4c$ tetraquark at the LHC

Production of $J / ψ$ -meson pairs and $4 c$ tetraquark at the LHC

A. V. Berezhnoy, A. K. Likhoded, A. V. Luchinsky, and A. A. Novoselov

Phys. Rev. D 84, 094023 – Published 18 November 2011

Abstract

Theoretical predictions for the $p p \to 2 J / ψ + X$ cross section at $\sqrt{s} = 7 TeV$ with different kinematical restrictions are presented. Results are compared with the first LHCb data available. Special attention is paid to a possible signal from novel particles—tetraquarks build from two valence $c$ -quarks and two valence $\bar{c}$ -quarks. According to our estimates, it is quite possible to observe at least one of these states (tensor tetraquark) experimentally under LHCb conditions.

Received 18 May 2011

DOI:https://doi.org/10.1103/PhysRevD.84.094023

© 2011 American Physical Society

Authors & Affiliations

A. V. Berezhnoy^1,*, A. K. Likhoded^2,†, A. V. Luchinsky^2,‡, and A. A. Novoselov^2,3,§

¹SINP of Moscow State University, Moscow, Russia
²Institute for High Energy Physics, Protvino, Russia
³Moscow Institute of Physics and Technology, Dolgoprudny, Russia

^*Alexander.Berezhnoy@cern.ch
^†Anatolii.Likhoded@ihep.ru
^‡Alexey.Luchinsky@ihep.ru
^§Alexey.Novoselov@cern.ch

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Issue

Vol. 84, Iss. 9 — 1 November 2011

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