The $Ω(2012)$ as a hadronic molecule
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866913404551168000 |
|---|---|
| author | Xie, Ju-Jun Geng, Li-Sheng |
| author_facet | Xie, Ju-Jun Geng, Li-Sheng |
| contents | Recently, a new excited baryon state, $Ω(2012)$, was observed in the invariant mass spectra of $K^-Ξ^0$ and $K^0_S Ξ^-$ by the Belle Collaboration. This state has a narrow width ($\sim 6$ MeV) compared to other baryon states with a similar mass. In this paper, we provide a mini-review on the $Ω(2012)$ state from the molecular perspective, where it appears to be a dynamically generated state with spin-parity $3/2^-$ from the coupled-channels interactions of the $\bar{K} Ξ(1530)$ and $ηΩ$ in $s$-wave and $\bar{K} Ξ$ in $d$-wave. Additionally, alternative explanations for the $Ω(2012)$ resonance are also discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_17481 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The $Ω(2012)$ as a hadronic molecule Xie, Ju-Jun Geng, Li-Sheng High Energy Physics - Phenomenology Nuclear Theory Recently, a new excited baryon state, $Ω(2012)$, was observed in the invariant mass spectra of $K^-Ξ^0$ and $K^0_S Ξ^-$ by the Belle Collaboration. This state has a narrow width ($\sim 6$ MeV) compared to other baryon states with a similar mass. In this paper, we provide a mini-review on the $Ω(2012)$ state from the molecular perspective, where it appears to be a dynamically generated state with spin-parity $3/2^-$ from the coupled-channels interactions of the $\bar{K} Ξ(1530)$ and $ηΩ$ in $s$-wave and $\bar{K} Ξ$ in $d$-wave. Additionally, alternative explanations for the $Ω(2012)$ resonance are also discussed. |
| title | The $Ω(2012)$ as a hadronic molecule |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2406.17481 |