Light- and Hyper-Nuclei Collectivity in Au plus Au Collisions at RHIC-STAR

被引：0
|
作者：
Han, Chengdong [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
来源：
30TH INTERNATIONAL CONFERENCE ON ULTRA-RELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS, QUARK MATTER 2023 | 2024年 / 296卷
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1051/epjconf/202429605014
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
We report the first results on collision energy and particle mass dependence of directed flow v(1) of light- and hyper-nuclei in mid-central Au+Au collisions at center of mass energies per nucleon pair of 3.0, 3.2, 3.5, and 3.9 GeV. All data have been collected by the STAR experiment in the fixed-target mode during the second phase of the RHIC beam energy scan. The mid-rapidity v(1) slope, dv(1)/dy|(y=0), of hyper-nuclei shows a similar energy and particle mass dependence to that of light-nuclei. The results suggest that the coalescence mechanism plays a dominant role in the formation of light- and hyper-nuclei.
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页数：4
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