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Light nuclei collectivity from 3 GeV Au+Au collisions at RHICстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Manukhov S.I., et al, STAR Collaboration
- Журнал: Physics Letters B
- Том: 827
- Год издания: 2022
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 136941
- DOI: 10.1016/j.physletb.2022.136941
- Аннотация: In high-energy heavy-ion collisions, partonic collectivity is evidenced by the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. A breaking of this scaling and dominance of baryonic interactions is found for identified hadron collective flow measurements in 3 GeV Au+Au collisions. In this paper, we report measurements of the first- and second-order azimuthal anisotropic parameters, and, of light nuclei (d, t, 3He, 4He) produced in 3 GeV Au+Au collisions at the STAR experiment. An atomic mass number scaling is found in the measured slopes of light nuclei at mid rapidity. For the measured magnitude, a strong rapidity dependence is observed. Unlike at higher collision energies, the values at mid-rapidity for all light nuclei are negative and no scaling is observed with the atomic mass number. Calculations by the Jet AA Microscopic Transport Model (JAM), with baryonic mean-field plus nucleon coalescence, are in good agreement with our observations, implying baryonic interactions dominate the collective dynamics in 3 GeV Au+Au collisions at RHIC.
- Добавил в систему: Манухов Степан Ильич