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| Main Author: | |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.23281 |
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Table of Contents:
- Hypernuclei are bound states of hyperons (Y) and nucleons (N). Measurements on their yields can help us investigate their production mechanisms. In particular, the ${}^5_Λ$He and $^{4}_Λ$H(e) are substantially tighter bound compared to the $^{3}_Λ$H. The large radius of the $^{3}_Λ$H leads to suppression in coalescence models, but not in the thermal model where the size of the nucleus does not play a role. As such, studying the $A=3$--5 hypernuclei yields allow us to extract information on the effects of hypernuclear binding on hypernuclei production in heavy-ion collisions. In these proceedings, we present measurements of ${}^5_Λ$He yields in Au+Au collisions at $\sqrt{s_{\rm NN}}=3.0$ GeV, $^{4}_Λ$H(e) yields in Au+Au collisions at $\sqrt{s_{\rm NN}}=3.0$--$4.5$ GeV, and $^{3}_Λ$H yields in Au+Au collisions at $\sqrt{s_{\rm NN}}=3$--$27$ GeV. Results on the directed flow of hypernuclei are also reported. The physics implications of these measurements are discussed.