Determination of the NΛK and NΣK coupling constants from KN forward dispersion relations

Recent applications of kaon‐nucleon forward dispersion relations, superconvergence relations, finite energy sum rules, derivative sum rules, and the Adler‐Weisberger sum rule are reviewed. These dispersion relations and sum rules have been used for the determination of the KNA and KN coupling constants, the phases of the kaon‐nucleon forward scattering amplitudes, and the Regge pole parameters, and have allowed tests of the PCAC hypothesis for strangeness‐changing currents. They also provide important constraints which help to resolve ambiguities in the phenomenological analysis of the scattering data. A critical comparison of various methods which have been proposed is given, the theoretical predictions are compared with experiment when possible, and our present knowledge of the kaon‐nucleon interaction parameters is summarized. Some new results are presented.

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Experimental Knowledge of the Real Parts of the K±p Forward Scattering Amplitudes

Dumbrais

Queen

1971

Fortschr. Phys.

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A compilation of experimentally determined values of the real parts of the K±p forward scattering amplitudes is given in a form in which these data may be used directly in analyses of forward dispersion relations. The methods of determining these real parts from experimental data are briefly reviewed and a survey of K±p low‐energy parametrizations and phase shift analyses is given. A summary is given of the theoretical determinations of the real parts.

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Determination of the NΛK and NΣK coupling constants from KN forward dispersion relations

Cited by 25 publications

References 46 publications

Lambda‐Nucleon Interaction

Lambda‐Nucleon Interaction

Recent Applications of KN Forward Dispersion Relations and Sum Rules

Experimental Knowledge of the Real Parts of the K±p Forward Scattering Amplitudes

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