Abstract
The problem of weak radiative hyperon decays (WRHD) is reviewed. With the rcent measurement of the Ξ 0 → Λ γ asymmetry confirming Hara's theorem, implications from its violation in low-energy theoretical approaches are discussed. It is shown how an underlying symmetry link should be formulated for a successful description of both nonleptonic and radiative weak hyperon decays. The sign of the Ξ 0 → Λ γ asymmetry and the overall size of parity-violating WRHD amplitudes together lead to the resolution of the old S:P problem in nonleptonic decays.
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