تقرير
The pseudoscalar meson and baryon octet interaction in the unitary coupled-channel approximation
| العنوان: | The pseudoscalar meson and baryon octet interaction in the unitary coupled-channel approximation |
|---|---|
| المؤلفون: | Sun, Bao-Xi, Zhang, Zheng-Ran, Wu, Hai-Lin, Zhao, Si-Yu, Dong, Fang-Yong |
| سنة النشر: | 2019 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | The pseudoscalar meson-baryon octet interaction is studied within a nonlinear realized Lagrangian, and then the Bethe-Salpeter equation is solved in the unitary coupled-channel approximation. In sector of strangeness $S=-1$ and isospin $I=0$, only one pole is generated dynamically in the 1400MeV region, which might correspond to the $\Lambda(1405)$ particle. When the case of strangeness zero is studied, the $s-$ and $u-$ potentials are taken into account in the kernel, and a resonance state is produced in the 1500MeV region, which might be a counterpart of the N(1535) particle. Comment: 5 pages. Talk given at the XVIII International Conference on Hadron Spectroscopy and Structure(HADRON2019), August 16-21, Guilin, China |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1912.11624 |
| رقم الأكسشن: | edsarx.1912.11624 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |