Speaker
Description
The production and interaction of light nuclei and hyper-nuclei in high-energy heavy-ion collisions have been a focus of theoretical and experimental interests for a long time. The production of light nuclei in heavy-ion collisions can be explained by the coalescence of produced or transported nucleons. Due to the low binding energies of light nuclei and hyper-nuclei, it is more likely that they are formed at later stages of the evolution of the fireball. Therefore, studying the collective flow of light nuclei and hyper-nuclei in the heavy-ion collisions can provide insights into their production mechanism. Further, the study of the collective flow of hyper-nuclei will shed light on the hyperon-nucleon (YN) interaction in dense nuclear medium.
In this talk, we will present the transverse momentum ($p_{T}$) and centrality dependence of elliptic flow ($v_2$) of $d$, $t$, and $^3\text{He}$ and their antiparticles in Au+Au collisions at $\sqrt{s_{NN}}$ = 14.6, 19.6, 27, and 54.4 GeV. $v_2(p_T)$ of light (anti-)nuclei will be compared with the AMPT+coalescence model. Mass number scaling of $v_2(p_T)$ of light (anti-)nuclei will also be shown. We will also report the first observation of the hyper-nuclei $^{3}_{\Lambda}$H and $^{4}_{\Lambda}$H directed flow ($v_1$) in $\sqrt{s_{NN}}$ = 3 GeV mid-central (5-40\%) Au+Au collisions in the fixed target mode.
| Present via | Online |
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