Results are presented for an updated multichannel energy-dependent partial-wave analysis of $\pi N$ scattering. Our earlier work incorporated single-energy amplitudes for $\pi N\to \pi N, \gamma N\to \pi N, \pi N\to \pi \pi N, \pi N\to \eta N$, and $\pi N\to K\mathrm{\Lambda }$. The present work incorporates new single-energy solutions for $\gamma p\to \eta p$ up to a center-of-mass (c.m.) energy of 1990 MeV, $\gamma p\to K^{+}\mathrm{\Lambda }$ up to a c.m. energy of 2230 MeV, and $\gamma n\to \eta n$ up to a c.m. energy of 1885 MeV, as well as updated single-energy solutions for $\pi N\to \eta N, \pi N\to K\mathrm{\Lambda }$, and $\gamma N\to \pi N$. In this paper, we present and discuss the resonance parameters obtained from a combined fit of all these single-energy amplitudes. Our determined energy-dependent amplitudes provide an excellent description of the corresponding measured observables.

• Received 12 November 2018
• Revised 21 January 2019

DOI:https://doi.org/10.1103/PhysRevC.99.055205