ar X iv : h ep - p h / 95 04 25 3 v 1 7 A pr 1 99 5 Strong Isospin
نویسنده
چکیده
The existence of isospin admixtures in the physical Λ, π o complicates the extraction of ∆I = 3 2 non-leptonic hyperon decay amplitudes from experimental data, allowing contributions associated with large ∆I = 1 2 amplitudes to appear in the (nominally) ∆I = 3 2 amplitudes obtained ignoring these admixtures. We show how to correct for this effect to leading order in (m d − m u) and extract the true ∆I = 3 2 amplitudes. The resulting corrections are modest (< 25%) for s-waves, but extremely large, ≃ 100% and ≃ 400% for Λ and Ξ p-waves, respectively.
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