Measurement of the J/ψ pair production cross-section in pp collisions at s√=13s=13 TeV

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    Abstract

    The production cross-section of J/ψ pairs is measured using a data sample of pp collisions collected by the LHCb experiment at a centre-of-mass energy of s√=13s=13 TeV, corresponding to an integrated luminosity of 279 ±11 pb−1. The measurement is performed for J/ψ mesons with a transverse momentum of less than 10 GeV/c in the rapidity range 2.0 < y < 4.5. The production cross-section is measured to be 15.2 ± 1.0 ± 0.9 nb. The first uncertainty is statistical, and the second is systematic. The differential cross-sections as functions of several kinematic variables of the J/ψ pair are measured and compared to theoretical predictions.
    Original languageEnglish
    Pages (from-to)1-38
    Number of pages39
    JournalThe Journal of High Energy Physics
    Volume2017
    Issue number6
    DOIs
    Publication statusPublished - 9 Jun 2017

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