Prompt and nonprompt J/ψ production and nuclear modification in pPb collisions at sNN=8.16 TeV

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi, M. AndreottiJ. E. Andrews, R. B. Appleby, F. Archilli, P. d'Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, I. Babuschkin, W. Barter, A. Bitadze, S. Borghi, J. Brodzicka, C. Burr, L. Capriotti, S. De Capua, G. Dujany, E. Gersabeck, M. Gersabeck, L. Grillo, C. Hombach, S. Klaver, G. Lafferty, K. Maguire, A. McNab, C. Parkes, A. Pearce, S. Reichert, P. Rodriguez Perez, G. Sarpis, LHCb Collaboration

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The production of J/ψ mesons is studied in proton-lead collisions at the centre-of-mass energy per nucleon pair sNN=8.16 TeV with the LHCb detector at the LHC. The double differential cross-sections of prompt and nonprompt J/ψ production are measured as a function of the J/ψ transverse momentum and rapidity in the nucleon–nucleon centre-of-mass frame. Forward-to-backward ratios and nuclear modification factors are determined. The results are compared with theoretical calculations based on collinear factorisation using nuclear parton distribution functions, on the colour glass condensate or on coherent energy loss models.

    Original languageEnglish
    Pages (from-to)159-178
    Number of pages20
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume774
    Early online date22 Sept 2017
    DOIs
    Publication statusPublished - 10 Nov 2017

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