QCD sum rule approach to the s->d gamma contribution to the Omega(-)->Xi(-)gamma radiative decay
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American Physical Soc
American Physical Society (APS)
American Physical Society (APS)
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Article
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Abstract
QCD sum rules are used to calculate the contribution of the short-distance single-quark transition s-->d gamma to the amplitudes of the hyperon radiative decay Omega(-)-->Xi(-) gamma. We reevaluate the Wilson coefficient of the effective operator responsible for this transition. We obtain a branching ratio which is comparable to the unitarity limit.
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English
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Physical Review D. College Pk: American Physical Soc, v. 53, n. 7, p. 3620-3628, 1996.
