JETP Letters

, Volume 105, Issue 4, pp 219–222 | Cite as

Effect of a meson cloud on the jet nuclear modification factor in pA collisions

Fields, Particles, and Nuclei


We study the effect of the nucleon meson cloud on centrality dependence of the jet nuclear modification factor R pA. We find that the meson–baryon Fock components may lead to a noticeable deviation of R pA from unity. Our results for R pA show the same tendency as that observed by ATLAS in p + Pb collisions at √s = 5.02 TeV. The meson cloud suppresses the central jet events and enhances the peripheral jet events. However, quantitatively the effect is somewhat smaller than in the data.


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© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  1. 1.Landau Institute for Theoretical PhysicsRussian Academy of SciencesMoscowRussia

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