Theoretical study of the $B^+\to D^-D_s^{+}π^+$ reaction
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866913188165976064 |
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| author | Luo, Xuan Li, Ruitian Sun, Hao |
| author_facet | Luo, Xuan Li, Ruitian Sun, Hao |
| contents | Prompted by the recent discoveries of $T_{c\bar{s}0}(2900)^{++}$ in the $D_s^+π^+$ invariant mass distribution of $B^+\to D^-D_s^+π^+$ process, we present a model that hopes to help us investigate the nature of $T_{c\bar{s}0}(2900)^{++}$ by reproducing the mass distribution of $D^-π^+, D_s^+π^+$ and $D^-D_s^+$ in $B^+ \to D^-D_s^+π^+$ decays. The structure of the triangular singularity peak generated from the $χ_{c1}D^{*+}K^{*+}$ loop near the $D^{*+}K^{*+}$ threshold is considered in our model may be the experimentally discovered resonance-like state structure $T_{c\bar{s}0}(2900)^{++}$. In addition, we employ a coupled-channel approach to describe the dominant contribution of the $Dπ$ $S\text{-wave}$ amplitude, and also consider other excitations. Our model provides a well fit to the invariant mass distributions of $D^-π^+, D_s^+π^+$ and $D^-D_s^+$ simultaneously. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_04953 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Theoretical study of the $B^+\to D^-D_s^{+}π^+$ reaction Luo, Xuan Li, Ruitian Sun, Hao High Energy Physics - Phenomenology High Energy Physics - Experiment Prompted by the recent discoveries of $T_{c\bar{s}0}(2900)^{++}$ in the $D_s^+π^+$ invariant mass distribution of $B^+\to D^-D_s^+π^+$ process, we present a model that hopes to help us investigate the nature of $T_{c\bar{s}0}(2900)^{++}$ by reproducing the mass distribution of $D^-π^+, D_s^+π^+$ and $D^-D_s^+$ in $B^+ \to D^-D_s^+π^+$ decays. The structure of the triangular singularity peak generated from the $χ_{c1}D^{*+}K^{*+}$ loop near the $D^{*+}K^{*+}$ threshold is considered in our model may be the experimentally discovered resonance-like state structure $T_{c\bar{s}0}(2900)^{++}$. In addition, we employ a coupled-channel approach to describe the dominant contribution of the $Dπ$ $S\text{-wave}$ amplitude, and also consider other excitations. Our model provides a well fit to the invariant mass distributions of $D^-π^+, D_s^+π^+$ and $D^-D_s^+$ simultaneously. |
| title | Theoretical study of the $B^+\to D^-D_s^{+}π^+$ reaction |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2312.04953 |