Energy dependence of dissociative J/Psi photoproduction as a signature of gluon saturation at the LHC

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00316296" target="_blank" >RIV/68407700:21340/17:00316296 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2016.12.063" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2016.12.063</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2016.12.063" target="_blank" >10.1016/j.physletb.2016.12.063</a>

Result language
angličtina
Original language name
Energy dependence of dissociative J/Psi photoproduction as a signature of gluon saturation at the LHC
Original language description
We have developed a model in which the quantum fluctuations of the proton structure are characterised by hot spots, whose number grows with decreasing Bjorken-x. Our model reproduces the F-2(x, Q(2)) data from HERA at the relevant scale, as well as the exclusive and dissociative J/Psi photoproduction data from H1 and ALICE. Our model predicts that forW(gamma p)approximate to 500GeV, the dissociative J/Psi cross section reaches a maximum and then decreases steeply with energy, which is in qualitatively good agreement to a recent observation that the dissociative J/Psi background in the exclusive J/Psi sample measured in photoproduction by ALICE decreases as energy increases. Our prediction provides a clear signature for gluon saturation at LHC energies. (C) 2017 The Authors. Published by Elsevier B.V.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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