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| Titel: | Coherent J/Ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb-Pb collisions at √sNN=5.02 TeV |
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| Mitwirkende: | Acharya, Shreyasi [VerfasserIn]  |
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| | Angelov, Venelin [VerfasserIn] |
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| | Arslandok, Mesut [VerfasserIn] |
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| | Berdnikova, Anastasia [VerfasserIn] |
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| | Bergmann, Luisa [VerfasserIn] |
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| | Danisch, Meike [VerfasserIn] |
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| | Feuillard, Victor [VerfasserIn] |
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| | Glässel, Peter [VerfasserIn] |
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| | Kim, Jiyoung [VerfasserIn] |
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| | Kim, Minjung [VerfasserIn] |
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| | Kroesen, Martin [VerfasserIn] |
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| | López, Jorge [VerfasserIn] |
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| | Martin, Nicole Alice [VerfasserIn] |
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| | Pachmayer, Yvonne C. [VerfasserIn] |
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| | Reygers, Klaus [VerfasserIn] |
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| | Schicker, Rainer [VerfasserIn] |
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| | Schmah, Alexander [VerfasserIn] |
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| | Schmidt, Marten Ole [VerfasserIn] |
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| | Skorodumovs, Georgijs [VerfasserIn] |
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| | Stachel, Johanna [VerfasserIn] |
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| | Stiefelmaier, Stephan [VerfasserIn] |
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| | Windelband, Bernd [VerfasserIn] |
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| | Yüncü, Alperen [VerfasserIn] |
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| Körperschaft: | ALICE (Körperschaft) [VerfasserIn] |
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| Verf.angabe: | ALICE Collaboration* |
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| E-Jahr: | 2021 |
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| Jahr: | 9 August 2021 |
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| Umfang: | 21 S. |
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| Fussnoten: | ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, A. Berdnikova, L. Bergmann, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, M. Kroesen, J.A. Lopez, N.A. Martin, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, B. Windelband, A. Yuncu [und viele weitere] ; Gesehen am 29.11.2021 ; Im Titel ist "NN" nach s tiefgestellt, der ganze Ausdruck "s NN" steht unter dem Wurzelsymbol |
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| Titel Quelle: | Enthalten in: The European physical journal / C |
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| Ort Quelle: | Berlin : Springer, 1998 |
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| Jahr Quelle: | 2021 |
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| Band/Heft Quelle: | 81(2021), 8, Artikel-ID 712, Seite 1-21 |
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| ISSN Quelle: | 1434-6052 |
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| Abstract: | 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 rapidity 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 corresponding to an integrated luminosity of about 233 μb-1. The results are compared with theoretical models for coherent of J/Ψ and ψ' photoproduction. The coherent cross section is found to be in a good agreement with models incorporating moderate nuclear gluon shadowing of about 0.64 at a Bjorken-x of around 6x10−4, such as the EPS09 parametrization, however none of the models is able to fully describe the rapidity dependence 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. |
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| DOI: | doi:10.1140/epjc/s10052-021-09437-6 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1140/epjc/s10052-021-09437-6 |
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| | Volltext: https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-021-09437-6 |
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| | DOI: https://doi.org/10.1140/epjc/s10052-021-09437-6 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1779737092 |
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| Verknüpfungen: | → Zeitschrift |
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Coherent J/Ψ and ψ' photoproduction at midrapidity in ultra-peripheral Pb-Pb collisions at √sNN=5.02 TeV / Acharya, Shreyasi [VerfasserIn]; 9 August 2021 (Online-Ressource)
