A study of the reaction K−p→Λπ+π− at c.m. energies in the range 1.65 to 1.72 GeV |
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Authors: | D.A. Evans E.L. Hart R.M. Rice R.B. Bacastow S.Y. Fung S.S. Hertzbach R. Ponte J. Button-Shafer S.S. Yamamoto |
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Affiliation: | 1. University of Tennessee, Knoxville, Tennessee, USA;2. University of California, Riverside, USA |
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Abstract: | Results are presented of a study of the reaction K?p→Λπ+π? in the c.m. energy region of 1.65 to 1.72 GeV. Dalitz plots indicate that the reaction proceeds primarily through the intermediate states Σ?(1385)π+ and Σ?(1385)π+, but the resonance bands intersect inside the kinematic ellipse and a simple quasi-two-body interpretation is not possible. Legendre coefficients are presented for the angular distributions of the Λπ+ and Λπ? sub-systems in the overall c.m. frame. Analogous coefficients as suggested by Deler and Valladas, which describe the angular distribution of the final three-body state are also presented. |
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