Elsevier

Nuclear Physics B

Volume 140, Issue 1, 24 July 1978, Pages 73-108
Nuclear Physics B

Study of a KS0KS0 threshold enhancement observed in the final states ppKS0KS0 + pions at 700 – 760 MeV/c

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Abstract

An analysis of the K0K0 system at threshold produced in the final states ppKS0KS0(nπ) at 700–760 MeV/c, is presented. A simultaneous fit to the ππ phase shifts and inelasticities and to the KS0KS0 effective-mass distributions using parametrizations which take into account the analytical and unitarity properties of the I = 0 S-wave amplitudes is performed. The behaviour of the eigenphases and the unphysical Riemann sheet structure for different solutions is studied.

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    Present address: Max Planck Institut, Munich, Germany.

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    Present address: Tokyo Metropolitan University, Tokyo, Japan.

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