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Positivity Constraints on Spin Observables in Exclusive Pseudoscalar Meson Photoproduction

Xavier Artru·Jean-Marc Richard·Jacques Soffer
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Abstract

Positivity constraints have proved to be important for spin observables of exclusive reactions involving polarized initial and final particles. Attention is focused in this note on the photoproduction of pseudoscalar mesons from spin 1/2 baryons, more specifically gamma+ N -> K+ Lambda, gamma+ N -> K Sigma, for which new experimental data are becoming available.

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Xavier Artru, Jean-Marc Richard, Jacques Soffer. 2007-01-20. Positivity Constraints on Spin Observables in Exclusive Pseudoscalar Meson Photoproduction. https://doi.org/10.1103/physrevc.75.024002

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