A possible subthreshold pole in $S_{11}$ channel from $\pi N$ Roy-Steiner equation analyses
The hyperbolic version of Roy-Steiner equation describing low energy $\pi N$ scatterings, with larger analyticity domain in the complex $s$ plane is solved. The numerical results on phase shifts of low partial waves are in agreement with that of Hoferichter et al. [Phys. Rept. 625 (2016) 1]. A subth...
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| creator | Cao, Xiong-Hui Li, Qu-Zhi Zheng, Han-Qing |
| description | The hyperbolic version of Roy-Steiner equation describing low energy $\pi N$
scatterings, with larger analyticity domain in the complex $s$ plane is solved.
The numerical results on phase shifts of low partial waves are in agreement
with that of Hoferichter et al. [Phys. Rept. 625 (2016) 1]. A subthreshold pole
in $S_{11}$ channel is found located at $\sqrt{s}=(918 \pm 3)-i (163 \pm
9)$~MeV. |
| doi_str_mv | 10.48550/arxiv.2207.09743 |
| format | Article |
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scatterings, with larger analyticity domain in the complex $s$ plane is solved.
The numerical results on phase shifts of low partial waves are in agreement
with that of Hoferichter et al. [Phys. Rept. 625 (2016) 1]. A subthreshold pole
in $S_{11}$ channel is found located at $\sqrt{s}=(918 \pm 3)-i (163 \pm
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scatterings, with larger analyticity domain in the complex $s$ plane is solved.
The numerical results on phase shifts of low partial waves are in agreement
with that of Hoferichter et al. [Phys. Rept. 625 (2016) 1]. A subthreshold pole
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scatterings, with larger analyticity domain in the complex $s$ plane is solved.
The numerical results on phase shifts of low partial waves are in agreement
with that of Hoferichter et al. [Phys. Rept. 625 (2016) 1]. A subthreshold pole
in $S_{11}$ channel is found located at $\sqrt{s}=(918 \pm 3)-i (163 \pm
9)$~MeV.</abstract><doi>10.48550/arxiv.2207.09743</doi><oa>free_for_read</oa></addata></record> |
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| title | A possible subthreshold pole in $S_{11}$ channel from $\pi N$ Roy-Steiner equation analyses |
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