Path integral treatment of coherence effects in charmonium production in nuclear ultra-peripheral collisions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00381451" target="_blank" >RIV/68407700:21340/25:00381451 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.22323/1.476.0505" target="_blank" >https://doi.org/10.22323/1.476.0505</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.476.0505" target="_blank" >10.22323/1.476.0505</a>

Result language
angličtina
Original language name
Path integral treatment of coherence effects in charmonium production in nuclear ultra-peripheral collisions
Original language description
We present for the first time a revised study of charmonium production in nuclear ultra-peripheral collisions (UPC) based on a rigorous Green function formalism. This formalism allows for the proper incorporation of the effects of color transparency, as well as the quantum coherence inherent in the higher twist quark shadowing related to the QQ Fock component of the photon. The significance of this effect gradually decreases towards forward and/or backward rapidities. In the LHC kinematic region we additionally incorporate within the same formalism the leading twist gluon shadowing corrections related to higher multi-gluon photon fluctuations. They represent a dominant source of nuclear phenomena in the mid-rapidity region. Model predictions for the rapidity distributions dσ/dy are in good agreement with available UPC data on coherent charmonium production at RHIC and the LHC. They can also be verified by future measurements at the LHC, as well as at EIC.
Czech name
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Czech description
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Project
<a href="/en/project/EF20_079%2F0017983" target="_blank" >EF20_079/0017983: Mobility CTU MSCA-IF-IV-v-79</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
42nd International Conference on High Energy Physics, ICHEP2024
ISBN
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ISSN
1824-8039
e-ISSN
1824-8039
Number of pages
6
Pages from-to
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Publisher name
PoS - Proceedings of Science, Sissa Medialab srl
Place of publication
Trieste
Event location
Praha
Event date
Jul 18, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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