Productions of $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in different coalescence channels in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV
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| Format: | Preprint |
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2025
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| _version_ | 1866916696209489920 |
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| author | Wang, Rui-Qin Song, Jun Wu, Mao-Yan Xue, Huai-Tong Shao, Feng-Lan |
| author_facet | Wang, Rui-Qin Song, Jun Wu, Mao-Yan Xue, Huai-Tong Shao, Feng-Lan |
| contents | We study the productions of $Λ$-hypernuclei $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in the coalescence mechanism in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV. Considering the abundance and great importance of baryons and light (hyper-)nuclei on the collision dynamics, we include not only nucleon$+Λ$ coalescence but also nucleus+nucleon($Λ$) coalescence. We present contributions from different coalescence channels for $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in their productions. We predict the production asymmetry between $^4_Λ$H and $^4_Λ$He, characterized by yield ratios $^4_Λ\text{He}/^4_Λ\text{H}$ and $(^4_Λ\text{H}-^4_Λ\text{He})/(^4_Λ\text{H}+^4_Λ\text{He})$, which can shed light on the existence constraints of the possible neutron-$Λ$ bound states $^2_Λn~(nΛ)$ and $^3_Λn~(nnΛ)$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2504_13640 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Productions of $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in different coalescence channels in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV Wang, Rui-Qin Song, Jun Wu, Mao-Yan Xue, Huai-Tong Shao, Feng-Lan Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment We study the productions of $Λ$-hypernuclei $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in the coalescence mechanism in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV. Considering the abundance and great importance of baryons and light (hyper-)nuclei on the collision dynamics, we include not only nucleon$+Λ$ coalescence but also nucleus+nucleon($Λ$) coalescence. We present contributions from different coalescence channels for $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in their productions. We predict the production asymmetry between $^4_Λ$H and $^4_Λ$He, characterized by yield ratios $^4_Λ\text{He}/^4_Λ\text{H}$ and $(^4_Λ\text{H}-^4_Λ\text{He})/(^4_Λ\text{H}+^4_Λ\text{He})$, which can shed light on the existence constraints of the possible neutron-$Λ$ bound states $^2_Λn~(nΛ)$ and $^3_Λn~(nnΛ)$. |
| title | Productions of $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in different coalescence channels in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV |
| topic | Nuclear Theory High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment |
| url | https://arxiv.org/abs/2504.13640 |