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1. A possible subthreshold pole in S11 channel from πN Roy-Steiner equation analyses.

Author

Cao, Xiong-Hui, Li, Qu-Zhi, and Zheng, Han-Qing

Abstract

The hyperbolic version of Roy-Steiner equation describing low energy πN 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 S11 channel is found located at s = (918 ± 3) − i(163 ± 9) MeV. [ABSTRACT FROM AUTHOR]

Published
2022
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