New Partial-Wave Analysis Results for $\eta N$ and $K \Lambda$

Previous measurements of $\eta N$ and $K \Lambda$ resonance couplings were based mainly on simplistic energy-dependent partial-wave analyses that violated unitarity. In this talk, new results will be presented based on a unitary multichannel partial-wave analysis that includes the channels $\pi N$, $\pi \pi N$, $\gamma N$, $\eta N$, and $K \Lambda$. Partial-wave amplitudes for the isospin-1/2 reactions $\pi N \to \eta N$ and $\pi N \to K \Lambda$ were first obtained at c.m. energies up to 2.1 GeV from single-energy partial-wave analyses of available world data. Then the amplitudes were incorporated into a global energy-dependent fit in order to obtain resonance parameters and energy-dependent amplitudes consistent with S-matrix unitarity. We will discuss the more important amplitudes and compare results from our energy-dependent solution with observables. These results present an important step into developing a partial-wave description of $\eta N$ and $K \Lambda$ photoproduction that is fully consistent with information determined from hadronic scattering reactions.