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Higher-order moments of the elliptic flow distribution in PbPb collisions at √sNN = 5.02 TeVстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или ScopusДата последнего поиска статьи во внешних источниках: 17 апреля 2024 г.
- Авторы: Belyaev Andrey, Boos E.E., Demiyanov A., Ershov A.A., A Gribushin, Khein L., Kodolova O.L., Korotkikh V.L., Obraztsov S.V., Petrushanko S.V., Savrin V.I., Snigirev A.M., Vardanyan I., CMS Collaboration
- Журнал: Journal of High Energy Physics
- Том: 2024
- Год издания: 2024
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Номер статьи: 106
- DOI: 10.1007/JHEP02(2024)106
- Аннотация: he hydrodynamic flow-like behavior of charged hadrons in high-energy lead-lead collisions is studied through multiparticle correlations. The elliptic anisotropy values based on different orders of multiparticle cumulants, v2{2k}, are measured up to the tenth order (k = 5) as functions of the collision centrality at a nucleon-nucleon center-of-mass energy of √sNN = 5.02 TeV. The data were recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 0.607 nb−1. A hierarchy is observed between the coefficients, with v2{2} > v2{4} ≳ v2{6} ≳ v2{8} ≳ v2{10}. Based on these results, centrality-dependent moments for the fluctuation-driven event-by-event v2 distribution are determined, including the skewness, kurtosis and, for the first time, superskewness. Assuming a hydrodynamic expansion of the produced medium, these moments directly probe the initial-state geometry in high-energy nucleus-nucleus collisions.
- Добавил в систему: Петрушанко Сергей Владимирович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | JHEP022024106.pdf | 1,1 МБ | 22 февраля 2024 [sergeant] |