Theoretical study of $f_0(980)$, $a_0(980)$ and $Ξ(1/2^-)$ in the process $Ξ_c^+ \to Σ^+K^+K^-$
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866914422304276480 |
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| author | Li, Ruitian Luo, Xuan Sun, Hao |
| author_facet | Li, Ruitian Luo, Xuan Sun, Hao |
| contents | We employed the chiral unitarity approach to investigate the decay process $Ξ_c^+ \to Σ^+K^+K^-$, by considering that the low lying nucleon resonance $Ξ(1/2^-)$ and the low lying scalar meson $f_0(980)$ and $a_0(980)$ that could be dynamically generated through $S$-wave pseudoscalar meson-octet baryon and the $S$-wave pseudoscalar meson-pseudoscalar meson interactions, respectively. In the invariant mass distributions of $Σ^+K^-$ and $K^+K^-$, we observe a distinct peak structure associated with the resonant state $Ξ(1/2^-)$ and a bit enhancement near the $K^+K^-$ threshold that is corresponding to the mesons $f_0(980)$ and $a_0(980)$, respectively. Consequently, we recommend more precise experimental measurements of this process in the future. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_18078 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Theoretical study of $f_0(980)$, $a_0(980)$ and $Ξ(1/2^-)$ in the process $Ξ_c^+ \to Σ^+K^+K^-$ Li, Ruitian Luo, Xuan Sun, Hao High Energy Physics - Phenomenology We employed the chiral unitarity approach to investigate the decay process $Ξ_c^+ \to Σ^+K^+K^-$, by considering that the low lying nucleon resonance $Ξ(1/2^-)$ and the low lying scalar meson $f_0(980)$ and $a_0(980)$ that could be dynamically generated through $S$-wave pseudoscalar meson-octet baryon and the $S$-wave pseudoscalar meson-pseudoscalar meson interactions, respectively. In the invariant mass distributions of $Σ^+K^-$ and $K^+K^-$, we observe a distinct peak structure associated with the resonant state $Ξ(1/2^-)$ and a bit enhancement near the $K^+K^-$ threshold that is corresponding to the mesons $f_0(980)$ and $a_0(980)$, respectively. Consequently, we recommend more precise experimental measurements of this process in the future. |
| title | Theoretical study of $f_0(980)$, $a_0(980)$ and $Ξ(1/2^-)$ in the process $Ξ_c^+ \to Σ^+K^+K^-$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2601.18078 |