Nuclear Effects in Coherent Photoproduction of Heavy Quarkonia

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00367050" target="_blank" >RIV/68407700:21340/23:00367050 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5506/APhysPolBSupp.16.5-A7" target="_blank" >https://doi.org/10.5506/APhysPolBSupp.16.5-A7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5506/APhysPolBSupp.16.5-A7" target="_blank" >10.5506/APhysPolBSupp.16.5-A7</a>

Result language
angličtina
Original language name
Nuclear Effects in Coherent Photoproduction of Heavy Quarkonia
Original language description
Coherent photoproduction of heavy quarkonia on nuclear targets is studied within the QCD color dipole formalism including several main phenomena: (i) The correlation between the impact parameter of a collision $vec b$ and dipole orientation $vec r$; (ii) The higher-twist nuclear shadowing related to the $Qbar Q$ Fock state of the photon; (iii) The leading-twist gluon shadowing corresponding to higher Fock components of the photon containing gluons; (iv) Reduced effects of quantum coherence in a popular Balitsky–Kovchegov equation compared to calculations, which are frequently presented in the literature. Our calculations of differential cross sections are in good agreement with the recent ALICE data on charmonium production in ultra-peripheral nuclear collisions. We present also predictions for coherent photoproduction of other quarkonium states ($psi^{,prime} (2S), Upsilon (1S), and Upsilon }^{,prime }(2S)$) that can be verified by future measurements at the LHC.
Czech name
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Czech description
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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
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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