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We report our recent effort for the extraction of resonance parameters(complex pole mass and residues etc.) associated with Lambda* and Sigma*hyperons. This was accomplished via a comprehensive partial-wave analysis ofthe data for K^- p --> barK N, pi Sigma, pi Lambda, eta Lambda, K Xi reactionsfrom the thresholds up to W=2.1 GeV within a dynamical coupled-channelsapproach. The results suggest a possible existence of new narrow J^P=3/2^+\Lambda resonance with pole mass 1671^{+2}_{-8} -i(5^{+11}_{-2}) MeV, locatedclose to the eta Lambda threshold. This resonance is found to be responsiblefor reproducing the data for K^-p --> eta Lambda differential cross sectionsnear the threshold, and thus the data seem favor its existence. The extractedpoles for J^P=1/2^- Lambda resonances below the barK N threshold, includingLambda(1405), are also presented.

Establishing mass spectrum of $S=-1$ hyperon resonances via a dynamical coupled-channels analysis of $K^-p$ reactions