The reaction $πN \to ωN$ in a dynamical coupled-channel approach
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866916085009219584 |
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| author | Wang, Yu-Fei |
| author_facet | Wang, Yu-Fei |
| contents | This talk is on a refined investigation on light flavor meson-baryon scatterings, using a dynamical coupled-channel approach, i.e. the Jülich-Bonn model. The previous channel space of $πN$, $πΔ$, $σN$, $ρN$, $ηN$, $K Λ$ and $K Σ$ is extended by adding the $ωN$ final state. The spectra of $N^*$ and $Δ$ resonances are extracted, based on the result of a global fit to a worldwide collection of data, in the energy region from the $πN$ threshold to center-of-mass energy $z=2.3$ GeV (approximately $300$ parameters against $9000$ data points). A negative value of the $ωN$ elastic spin-averaged scattering length has been extracted. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_01186 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The reaction $πN \to ωN$ in a dynamical coupled-channel approach Wang, Yu-Fei Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment Computational Physics This talk is on a refined investigation on light flavor meson-baryon scatterings, using a dynamical coupled-channel approach, i.e. the Jülich-Bonn model. The previous channel space of $πN$, $πΔ$, $σN$, $ρN$, $ηN$, $K Λ$ and $K Σ$ is extended by adding the $ωN$ final state. The spectra of $N^*$ and $Δ$ resonances are extracted, based on the result of a global fit to a worldwide collection of data, in the energy region from the $πN$ threshold to center-of-mass energy $z=2.3$ GeV (approximately $300$ parameters against $9000$ data points). A negative value of the $ωN$ elastic spin-averaged scattering length has been extracted. |
| title | The reaction $πN \to ωN$ in a dynamical coupled-channel approach |
| topic | Nuclear Theory High Energy Physics - Phenomenology Nuclear Experiment Computational Physics |
| url | https://arxiv.org/abs/2401.01186 |