Measurements of 4ΛH and 4ΛHe Production in √sNN = 3.0-3.5 GeV Au+Au Collisions at RHIC
Hypernuclei, which are bound states of nuclei with at least one hyperon, serve as excellent experimental probes for studying the hyperon-nucleon (Y-N) interaction. In these proceedings, the measurements of A=4 hypernuclei (4ΛH and 4ΛHe) production from the RHIC-STAR experiment utilizing the fixed ta...
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_05002.pdf |
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| Summary: | Hypernuclei, which are bound states of nuclei with at least one hyperon, serve as excellent experimental probes for studying the hyperon-nucleon (Y-N) interaction. In these proceedings, the measurements of A=4 hypernuclei (4ΛH and 4ΛHe) production from the RHIC-STAR experiment utilizing the fixed target datasets are presented. The measured yields dN=dy of 4ΛH and 4ΛHe as a function of rapidity are shown from √sNN and 3.5 GeV Au+Au collisions. Additionally, the energy dependencies of the ratio of 4ΛH/Λ and 4ΛHe/Λ are examined to explore isospin effects. The mass dependence of the mean transverse momentum <pT> are also discussed. Furthermore, calculations from PHQMD, thermal model and transport model JAM plus coalescence afterburner are compared to these results and the relevant physics implications are discussed. |
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| ISSN: | 2100-014X |