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

The LHCb Collaboration, R Aaij, Marco Adinolfi, Emma Buchanan, Andrew Cook, Jeremy Dalseno, Sam Harnew, James Kariuki, Paras Naik, Konstantinos Petridis, Gabriela Pomery, Eugenia Price, Claire Prouve, Renato Quagliani, Jonas Rademacker, Sophie Richards, Daniel Saunders, Nicola Skidmore, Jaap Velthuis

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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
JournalJournal of High Energy Physics
Volume47
DOIs
Publication statusPublished - 9 Jun 2017

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