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J/ψ in high-multiplicity pp collisions: lessons from pA collisions

Gluons at small x in high-energy nuclei overlap in the longitudinal direction, so the nucleus acts as a single source of gluons, like higher Fock components in a single nucleon, which contribute to inelastic collisions with a high multiplicity of produced hadrons. This similarity helps to make a lin...

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Bibliographic Details
Main Authors: Kopeliovich, Boris Z. (Author) , Pirner, Hans J. (Author) , Potashnikova, I. K. (Author) , Reygers, Klaus (Author) , Schmidt, Iván (Author)
Format: Article (Journal)
Language:English
Published: 2 December 2013
In: Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2013, Volume: 88, Issue: 11, Pages: 1-6
ISSN:1550-2368
DOI:10.1103/PhysRevD.88.116002
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.88.116002
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.88.116002
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Author Notes:B.Z. Kopeliovich, H.J. Pirner, I.K. Potashnikova, K. Reygers, and Iván Schmidt
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Summary:Gluons at small x in high-energy nuclei overlap in the longitudinal direction, so the nucleus acts as a single source of gluons, like higher Fock components in a single nucleon, which contribute to inelastic collisions with a high multiplicity of produced hadrons. This similarity helps to make a link between nuclear effects in pA and high-multiplicity pp collisions. Such a relation is well confirmed by data for the J/Ψ production rate in high-multiplicity pp events measured recently in the ALICE experiment. Broadening of J/Ψ transverse momentum is predicted for high-multiplicity pp collisions.
Item Description:Gesehen am 25.03.2021
Physical Description:Online Resource
ISSN:1550-2368
DOI:10.1103/PhysRevD.88.116002

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