Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.14424 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916370093965312 |
|---|---|
| author | Xu, Aojia Li, Ruitian Luo, Xuan Sun, Hao |
| author_facet | Xu, Aojia Li, Ruitian Luo, Xuan Sun, Hao |
| contents | We study the production of hyperon resonances in the $π^+p\to pa_0^+ϕ$ reaction within an effective Lagrangian approach. The model includes the production of $Δ(1940)$ and $Δ(1920)$ in the intermediate state excited by the $ρ$ and $p$ exchanges between the initial proton and $π$ meson. Due to the large contribution of $ρ$ exchange in $Δ(1940)$ production, $Δ(1940)$ is found a significant contribution near the threshold in this reaction. We provide total and differential cross section predictions for the reation and discuss the possible influence of model parameters, off-shell effects and branching ratios for $Δ(1940)\to pa_0$ and $Δ(1920)\to pa_0$ decays, which will be useful in future experimental studies. This reaction can provide a platform for studying the features of $Δ(1940)$ resonance, especially the coupling to $pa_0$ channel. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_14424 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The Theoretical Study of $π^+p\to pa_0^+ϕ$ Reaction Xu, Aojia Li, Ruitian Luo, Xuan Sun, Hao High Energy Physics - Phenomenology We study the production of hyperon resonances in the $π^+p\to pa_0^+ϕ$ reaction within an effective Lagrangian approach. The model includes the production of $Δ(1940)$ and $Δ(1920)$ in the intermediate state excited by the $ρ$ and $p$ exchanges between the initial proton and $π$ meson. Due to the large contribution of $ρ$ exchange in $Δ(1940)$ production, $Δ(1940)$ is found a significant contribution near the threshold in this reaction. We provide total and differential cross section predictions for the reation and discuss the possible influence of model parameters, off-shell effects and branching ratios for $Δ(1940)\to pa_0$ and $Δ(1920)\to pa_0$ decays, which will be useful in future experimental studies. This reaction can provide a platform for studying the features of $Δ(1940)$ resonance, especially the coupling to $pa_0$ channel. |
| title | The Theoretical Study of $π^+p\to pa_0^+ϕ$ Reaction |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2408.14424 |