Speaker
Description
Studying hyper-nuclei yields and their collectivity can shed light on their production mechanism as well as the hyperon-nucleon interactions. Heavy-ion collisions from the RHIC beam energy scan phase II (BES-II) provide an unique opportunity to understand these at high baryon densities.
In this poster, we present the first measurement of directed flow ($v_{1}$) for $^{4}_{\Lambda}{\rm He}$ and $^{5}_{\Lambda}{\rm He}$ from fixed-target Au+Au collisions at $\sqrt{s_{NN}}$ = 3.0 GeV, made possible by the collection of 2 billion minimum-bias events by the STAR experiment during BES-II. The rapidity (y) dependence of the $^{4}_{\Lambda}{\rm He}$ and $^{5}_{\Lambda}{\rm He}$ $v_{1}$ are studied in mid-central collisions. The results are compared to that of other hyper-nuclei and light-nuclei. Finally, these results are compared with calculations from a hadronic transport model.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | STAR |
