2002/05/31 by P. Zenczykowski
Physics and Astronomy · #hep-ph
published as Acta Phys.Polon. B34 (2003) 2683-2692 · 12 LaTeX pages, 1 .ps figure
arxiv created 2002/10/04 · arxiv updated 2009/11/30
Using the recent measurement of the Ξ0 → Λγ asymmetry as an input, we reanalyse nonleptonic and weak radiative hyperon decays in a single symmetry-based framework. In this framework the old S:P problem of nonleptonic decays is automatically resolved when the most important features of weak radiative decays are taken into account. Experimental data require that symmetry between the two types of hyperon decays be imposed at the level of currents, not fields. Previously established connections between hyperon decays and nuclear parity violation imply that the conflict, originally suggested by weak radiative decays, has to surface somewhere.