Hyperon Pair Production at BESIII
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909716141047808 |
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| author | Shang, Zijie Zhang, Ruoyu wang, Xiongfei |
| author_facet | Shang, Zijie Zhang, Ruoyu wang, Xiongfei |
| contents | This poster presents recent experimental findings from the BESIII experiment, including two categories of studies. Firstly, it reports the studies on the hyperon pair production in the processes $e^+e^- \to Λ\barΛ$, $Σ^+\barΣ^-$, $Σ^0\barΣ^0$, $Ξ^0\barΞ^0$ and $Ξ^-\barΞ^+$. The Born cross sections for these processes are measured at center-of-mass energies ranging from $3.5$ to $4.9$ GeV. For the first time, evidence for the decays $ψ(3770)\toΛ\barΛ$ and $Ξ^-\barΞ^+$ is found. Secondly, it reports the measurements of the Born cross sections of multi-body decays involving hyperon final states. The evidence of $ψ(4160)\to K^-\barΞ^+Λ+c.c.$ is found. These results offer new perspectives on hyperon production in $e^+e^-$ annihilation and the decay mechanism of vector charmonium(-like) states, contributing to our understanding of hadron dynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_00470 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hyperon Pair Production at BESIII Shang, Zijie Zhang, Ruoyu wang, Xiongfei High Energy Physics - Experiment This poster presents recent experimental findings from the BESIII experiment, including two categories of studies. Firstly, it reports the studies on the hyperon pair production in the processes $e^+e^- \to Λ\barΛ$, $Σ^+\barΣ^-$, $Σ^0\barΣ^0$, $Ξ^0\barΞ^0$ and $Ξ^-\barΞ^+$. The Born cross sections for these processes are measured at center-of-mass energies ranging from $3.5$ to $4.9$ GeV. For the first time, evidence for the decays $ψ(3770)\toΛ\barΛ$ and $Ξ^-\barΞ^+$ is found. Secondly, it reports the measurements of the Born cross sections of multi-body decays involving hyperon final states. The evidence of $ψ(4160)\to K^-\barΞ^+Λ+c.c.$ is found. These results offer new perspectives on hyperon production in $e^+e^-$ annihilation and the decay mechanism of vector charmonium(-like) states, contributing to our understanding of hadron dynamics. |
| title | Hyperon Pair Production at BESIII |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2508.00470 |