Directed Flow of $Λ$, $^{3}_Λ{\rm H}$ and $^{4}_Λ{\rm H}$ in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 3.2, 3.5, 3.9 and 4.5 GeV at RHIC
Fuente:
arXiv
Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866912139462049792 |
|---|---|
| author | Han, Junyi |
| author_facet | Han, Junyi |
| contents | 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 these proceedings, we present a systematic study on energy dependence of the directed flow ($v_{1}$) for $Λ$ and hyper-nuclei ($^{3}_Λ{\rm H}$, $^{4}_Λ{\rm H}$) from mid-central Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3.2, 3.5, 3.9 and 4.5 GeV, collected by the STAR experiment with the fixed-target mode during BES-II. The rapidity (y) dependence of the hyper-nuclei $v_{1}$ is studied in mid-central collisions. The extracted $v_{1}$ slopes ($\mathrm{d}v_{1}/\mathrm{d}y|_{y=0}$) of the hyper-nuclei are positive and decrease gradually as the collision energy increases. These hyper-nuclei results are compared to that of light-nuclei including p, d, t/$\rm ^{3}He$ and $\rm ^{4}He$. Finally, these results are compared with a hadronic transport model including coalescence after-burner. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_00871 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Directed Flow of $Λ$, $^{3}_Λ{\rm H}$ and $^{4}_Λ{\rm H}$ in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 3.2, 3.5, 3.9 and 4.5 GeV at RHIC Han, Junyi Nuclear Experiment High Energy Physics - Experiment Nuclear Theory 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 these proceedings, we present a systematic study on energy dependence of the directed flow ($v_{1}$) for $Λ$ and hyper-nuclei ($^{3}_Λ{\rm H}$, $^{4}_Λ{\rm H}$) from mid-central Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3.2, 3.5, 3.9 and 4.5 GeV, collected by the STAR experiment with the fixed-target mode during BES-II. The rapidity (y) dependence of the hyper-nuclei $v_{1}$ is studied in mid-central collisions. The extracted $v_{1}$ slopes ($\mathrm{d}v_{1}/\mathrm{d}y|_{y=0}$) of the hyper-nuclei are positive and decrease gradually as the collision energy increases. These hyper-nuclei results are compared to that of light-nuclei including p, d, t/$\rm ^{3}He$ and $\rm ^{4}He$. Finally, these results are compared with a hadronic transport model including coalescence after-burner. |
| title | Directed Flow of $Λ$, $^{3}_Λ{\rm H}$ and $^{4}_Λ{\rm H}$ in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 3.2, 3.5, 3.9 and 4.5 GeV at RHIC |
| topic | Nuclear Experiment High Energy Physics - Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2412.00871 |