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A study of the reaction K−p→Λπ+π− at c.m. energies in the range 1.65 to 1.72 GeV
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
Affiliation:1. University of Tennessee, Knoxville, Tennessee, USA;2. University of California, Riverside, USA
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.
Keywords:
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