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Results from a partial-wave analysis of the reaction $\gamma p \rightarrowK^+ \Lambda$ are presented. The reaction is dominated by the $S_{11}(1650)$ and$P_{13}(1720)$ resonances at low energies and by $P_{13}(1900)$ at higherenergies. There are small contributions from all amplitudes up to and including$G_{17}$, with $F_{17}$ necessary for obtaining a good fit of several of thespin observables. We find evidence for $P_{11}$(1880), $D_{13}$(2120), and$D_{15}$(2080) resonances, as well as a possible $F_{17}$ resonance near 2300MeV, which is expected from quark-model predictions. Some predictions for$\gamma n \to K^0 \Lambda$ are also included.

Partial-Wave Analysis of $\gamma p \rightarrow K^+ \Lambda$ using a multichannel framework