Scalar resonance contributions in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}π^{+}π^{-}$ reaction
Fuente:
arXiv
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909553312923648 |
|---|---|
| author | Wang, Zhong-Yu Li, Yu-Shuai Luo, Si-Qiang |
| author_facet | Wang, Zhong-Yu Li, Yu-Shuai Luo, Si-Qiang |
| contents | Inspired by the newly observed $T_{c\bar{s}}$ state in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}π^{+}π^{-}$ reaction by the LHCb Collaboration, we investigate the amplitude of this decay to explore the origins and properties of the open-charm tetraquark state based on the final state interaction. The invariant mass distributions of $D_{s}^{+}π^{+}$ and $π^{+}π^{-}$ are well reproduced by the $S$-wave scattering amplitudes of the coupled channel systems $D_{s}π$ and $ππ$. However, neither the tree-level nor both the tree-level and $ππ$ coupled channel scattering contributions can describe the experimental data well, which indicates that the $D_{s}π$ coupled channel scattering is required. We find that the $T_{c\bar{s}}$ and $f_{0}(500)$ resonances are dynamically generated from the pseudoscalar-pseudoscalar meson interaction within the chiral unitary approach. In addition, we find the corresponding poles and also calculate the $S$-wave scattering length for the $DK$ channel, which is on the same scale as the result extracted from the experiment. We propose that the $T_{c\bar{s}}$ and $f_{0}(500)$ resonances in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}π^{+}π^{-}$ reaction are hadronic molecular type particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_06446 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Scalar resonance contributions in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}π^{+}π^{-}$ reaction Wang, Zhong-Yu Li, Yu-Shuai Luo, Si-Qiang High Energy Physics - Phenomenology Inspired by the newly observed $T_{c\bar{s}}$ state in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}π^{+}π^{-}$ reaction by the LHCb Collaboration, we investigate the amplitude of this decay to explore the origins and properties of the open-charm tetraquark state based on the final state interaction. The invariant mass distributions of $D_{s}^{+}π^{+}$ and $π^{+}π^{-}$ are well reproduced by the $S$-wave scattering amplitudes of the coupled channel systems $D_{s}π$ and $ππ$. However, neither the tree-level nor both the tree-level and $ππ$ coupled channel scattering contributions can describe the experimental data well, which indicates that the $D_{s}π$ coupled channel scattering is required. We find that the $T_{c\bar{s}}$ and $f_{0}(500)$ resonances are dynamically generated from the pseudoscalar-pseudoscalar meson interaction within the chiral unitary approach. In addition, we find the corresponding poles and also calculate the $S$-wave scattering length for the $DK$ channel, which is on the same scale as the result extracted from the experiment. We propose that the $T_{c\bar{s}}$ and $f_{0}(500)$ resonances in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}π^{+}π^{-}$ reaction are hadronic molecular type particles. |
| title | Scalar resonance contributions in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}π^{+}π^{-}$ reaction |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.06446 |