prikaz prve stranice dokumenta Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV
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Scientific paper - Original scientific paper
Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV
The European Physical Journal C, 81 (2021), 8; 712. https://doi.org/10.1140/epjc/s10052-021-09437-6
(ALICE Collaboration) Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Karatović, David; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, G.; ...; Vicković, Linda; ...; Zurlo, N. More authors...

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Acharya, S., Antičić, T., Erhardt, F., Gotovac, S., Jerčić, M., Karatović, D. ... Zurlo, N. (2021). Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV. The European Physical Journal C, 81. (8). doi: 10.1140/epjc/s10052-021-09437-6

Acharya, S., et al. "Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV." The European Physical Journal C, vol. 81, no. 8, 2021. https://doi.org/10.1140/epjc/s10052-021-09437-6

Acharya, S., Tome Antičić, Filip Erhardt, Sven Gotovac, Marko Jerčić, David Karatović, Petra Lončar, et al. "Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV." The European Physical Journal C 81, no. 8 (2021). https://doi.org/10.1140/epjc/s10052-021-09437-6

Acharya, S., et al. (2021) 'Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV', The European Physical Journal C, 81(8). doi: 10.1140/epjc/s10052-021-09437-6

Acharya S, Antičić T, Erhardt F, Gotovac S, Jerčić M, Karatović D, and sur.. Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV. The European Physical Journal C [Internet]. 2021 August 09 [cited 2024 October 04];81(8). doi: 10.1140/epjc/s10052-021-09437-6

S. Acharya, et al., "Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV", The European Physical Journal C, vol. 81, no. 8, August 2021. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:294440. [Accessed: 04 October 2024]

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Metadata
Title (english)Coherent J/ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb–Pb collisions at √sNN = 5.02 TeV
AuthorS. Acharya
Author
...
AuthorTome Antičić
Author
...
AuthorFilip Erhardt
Author
...
AuthorSven Gotovac
Author
...
AuthorMarko Jerčić
Author
...
AuthorDavid Karatović
Author
...
AuthorPetra Lončar
Author
...
AuthorEugen Mudnić
Author
...
AuthorMirko Planinić
Author
...
AuthorNikola Poljak
Author
...
AuthorG. Simatović
Author
...
AuthorLinda Vicković
Author
...
AuthorN. Zurlo
CollaborationALICE Collaboration
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The coherent photoproduction of J/ψ and ψ mesons was measured in ultra-peripheral Pb–Pb collisions at a center-of-mass energy √sNN = 5.02 TeV with the ALICE detector. Charmonia are detected in the central rapid ity region for events where the hadronic interactions are strongly suppressed. The J/ψ is reconstructed using the dilepton (l +l −) and proton–antiproton decay channels, while for the ψ the dilepton and the l +l −π+π− decay channels are studied. The analysis is based on an event sample correspond ing to an integrated luminosity of about 233μb−1. The results are compared with theoretical models for coherent J/ψ and ψ photoproduction. The coherent cross section is found to be in a good agreement with models incorporating moder ate nuclear gluon shadowing of about 0.64 at a Bjorken-x of around 6×10−4, such as the EPS09 parametrization, however none of the models is able to fully describe the rapidity depen dence of the coherent J/ψ cross section including ALICE measurements at forward rapidity. The ratio of ψ to J/ψ coherent photoproduction cross sections was also measured and found to be consistent with the one for photoproduction off protons.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleThe European Physical Journal C
Numberingvol. 81, no. 8, 712
p-ISSN1434-6044
e-ISSN1434-6052
DOIhttps://doi.org/10.1140/epjc/s10052-021-09437-6
URN:NBNurn:nbn:hr:217:294440
Publication2021-08-09
Document URLhttps://link.springer.com/10.1140/epjc/s10052-021-09437-6
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© CERN for the benefit of the ALICE Collaboration 2021. This article is licensed under a Creative Commons Attri bution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, pro vide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indi cated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permit ted use, you will need to obtain permission directly from the copy right holder. To view a copy of this licence, visit http://creativecomm ons.org/licenses/by/4.0/. Funded by SCOAP3. Received: 24 January 2021. Accepted: 9 July 2021. Published online: 9 August 2021.
Created on2024-09-22 19:09:50