prikaz prve stranice dokumenta First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV
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Scientific paper - Letter
First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV
Physics Letters B, 820 (2021); 136481. https://doi.org/10.1016/j.physletb.2021.136481
(ALICE Collaboration) Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Karatović, David; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; 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). First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV. Physics Letters B, 820.. doi: 10.1016/j.physletb.2021.136481

Acharya, S., et al. "First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV." Physics Letters B, vol. 820, 2021. https://doi.org/10.1016/j.physletb.2021.136481

Acharya, S., Tome Antičić, Filip Erhardt, Sven Gotovac, Marko Jerčić, David Karatović, Petra Lončar, et al. "First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV." Physics Letters B 820 (2021). https://doi.org/10.1016/j.physletb.2021.136481

Acharya, S., et al. (2021) 'First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV', Physics Letters B, 820. doi: 10.1016/j.physletb.2021.136481

Acharya S, Antičić T, Erhardt F, Gotovac S, Jerčić M, Karatović D, and sur.. First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV. Physics Letters B [Internet]. 2021 [cited 2025 January 15];820. doi: 10.1016/j.physletb.2021.136481

S. Acharya, et al., "First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 TeV", Physics Letters B, vol. 820, 2021. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:541091. [Accessed: 15 January 2025]

Metadata
Title (english)First measurement of coherent ρ0 photoproduction in ultra-peripheral Xe–Xe collisions at √sNN=5.44 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
...
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 first measurement of the coherent photoproduction of ρ0 vector mesons in ultra- peripheral Xe–Xe collisions at sNN=5.44 TeV is presented. This result, together with previous HERA γp data and γ–Pb measurements from ALICE, describes the atomic number (A) dependence of this process, which is particularly sensitive to nuclear shadowing effects and to the approach to the black-disc limit of QCD at a semi-hard scale. The cross section of the Xe+Xe→ρ0+Xe+Xe process, measured at midrapidity through the decay channel ρ0→π+π−, is found to be dσ/dy=131.5±5.6(stat.)−16.9+17.5(syst.) mb. The ratio of the continuum to resonant contributions for the production of pion pairs is also measured. In addition, the fraction of events accompanied by electromagnetic dissociation of either one or both colliding nuclei is reported. The dependence on A of cross section for the coherent ρ0 photoproduction at a centre-of-mass energy per nucleon of the γA system of WγA, n=65 GeV is found to be consistent with a power-law behaviour σ(γA→ρ0A)∝Aα with a slope α=0.96±0.02(syst.). This slope signals important shadowing effects, but it is still far from the behaviour expected in the black- disc limit.
Keywords (english)
Languageenglish
Publication typeScientific paper - Letter
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysics Letters B
Numberingvol. 820, 136481
p-ISSN0370-2693
DOIhttps://doi.org/10.1016/j.physletb.2021.136481
URN:NBNurn:nbn:hr:217:541091
Publication2021
Document URLhttps://linkinghub.elsevier.com/retrieve/pii/S0370269321004214
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2021 European Organization for Nuclear Research. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. Received 24 January 2021. Received in revised form 3 June 2021. Accepted 24 June 2021. Available online 29 June 2021.
Created on2024-09-18 19:54:45