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2011176 citationsJournal Articlehybrid Open Access

Authors

R. Aaij · National Institute for Subatomic Physics

B. Adeva · Universidade de Santiago de Compostela

M. Adinolfi · University of Bristol

C. Adrover · Centre National de la Recherche Scientifique

A. A. Affolder · University of Liverpool

Z. Ajaltouni · Centre National de la Recherche Scientifique

J. Albrecht

Abstract

The production of J/ψ pairs in proton–proton collisions at a centre-of-mass energy of 7 TeV has been observed using an integrated luminosity of 37.5 pb−1 collected with the LHCb detector. The production cross-section for pairs with both J/ψ in the rapidity range 2<yJ/ψ<4.5 and transverse momentum pTJ/ψ<10 GeV/c isσJ/ψJ/ψ=5.1±1.0±1.1 nb, where the first uncertainty is statistical and the second systematic.

Topics & Keywords

Particle physics theoretical and experimental studies High-Energy Particle Collisions Research Quantum Chromodynamics and Particle Interactions

Publication Details

Published in: Physics Letters B

Volume 707, Issue 1, pp. 52-59

DOI: 10.1016/j.physletb.2011.12.015

Field-Weighted Citation Impact: 21.02

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Publication Details