Elsevier

Nuclear Physics B

Volume 143, Issue 2, 16 October 1978, Pages 189-231
Nuclear Physics B

Partial-wave analysis of Kp → πΣ± (1385) between 1775–2170 MeV including new data below 1960 MeV

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Abstract

New data are presented for the reaction Kp → Λπ+π at 11 energies between 1775 and 1957 MeV in the centre-of-mass. New values for the masses and widths of the Σ±(1385) are given. The differential cross sections and the complete spin density matrices for the reactions Kp → π±Σ (1385) were extracted from these data using also the information from the Λ decay. An energy-dependent partial-wave analysis has been carried out over the c.m. range 1775–2170 MeV also using data from an earlier experiment. Comparisons between the observed resonant amplitudes and SU(3) and SU(6)W ⊎ O(3) predictions have been made.

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    Present address: University of Michigan, Physics Department, Ann Arbor, Michigan 48109, USA.

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