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Coherent photoproduction of ρ0\rho^{0}ρ0 vector mesons in ultra-peripheral Pb-Pb collisions at sNN \sqrt{{\mathrm{s}}_{\mathrm{NN}}} sNN = 5.02 TeVстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 января 2021 г.
- Авторы: Malinina L., ALICE C.
- Журнал: Journal of High Energy Physics
- Том: 6
- Год издания: 2020
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Первая страница: 35
- DOI: 10.1007/JHEP06(2020)035
- Аннотация: Cross sections for the coherent photoproduction of ρ0^{0}0 vector mesons in ultra-peripheral Pb-Pb collisions at sNN \sqrt{{\mathrm{s}}_{\mathrm{NN}}} sNN = 5.02 TeV are reported. The measurements, which rely on the π+^{+}+π−^{−}− decay channel, are presented in three regions of rapidity covering the range |y| < 0.8. For each rapidity interval, cross sections are shown for different nuclear-breakup classes defined according to the presence of neutrons measured in the zero-degree calorimeters. The results are compared with predictions based on different models of nuclear shadowing. Finally, the observation of a coherently produced resonance-like structure with a mass around 1.7 GeV/c2^{2}2 and a width of about 140 MeV/c2^{2}2 is reported and compared with similar observations from other experiments.[graphic not available: see fulltext]
- Добавил в систему: Малинина Людмила Владимировна