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

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, LA Everse, L. Anderlini, G. Andreassi, M. Andreotti, J.E. AndrewsR. B. Appleby, F. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, K. Carvalho Akiba, V. Coco, P. N.Y. David, K. De Bruyn, M. Ferro-Luzzi, T. Ketel, R. F. Koopman, J. van Leerdam, T. Li, M. Merk, C. J.G. Onderwater, G. Raven, M. Schiller, N. Serra, H. Snoek, B. Storaci, V. Syropoulos, J. van Tilburg, S. Tolk, P. Tsopelas, N. Tuning, The LHCb collaboration

Research output: Contribution to JournalArticleAcademicpeer-review

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=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.[Figure not available: see fulltext.].

Original languageEnglish
Article number47
Pages (from-to)1 - 38
JournalJournal of High Energy Physics
Volume2017
Issue number6
DOIs
Publication statusPublished - 1 Jun 2017

Funding

FundersFunder number
Science and Technology Facilities CouncilST/J004332/1, ST/L001152/1, ST/N000250/1, 1641747, ST/M003140/1, 1681016, ST/K003410/1, LHCb, ST/N000331/1, GRIDPP
Schweizerischer Nationalfonds zur F&#x00F6;rderung der Wissenschaftlichen Forschung166208

    Keywords

    • Hadron-Hadron scattering (experiments)
    • Particle and resonance production
    • proton-proton scattering
    • QCD
    • Quarkonium

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