The Ω-→Ξ-γ radiative decay:: A QCD sum rule approach

被引：0

作者：

Nielsen, M ^{[1
]}

Barreiro, LA ^{[1
]}

Escobar, CO ^{[1
]}

Rosenfeld, R ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-5389970 Sao Paulo, Brazil

来源：

INTERNATIONAL WORKSHOP ON HADRON PHYSICS 96: TOPICS ON THE STRUCTURE AND INTERACTION OF HADRONIC SYSTEMS | 1997年

关键词：

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

QCD sum rules are used to calculate the contribution of short-distance single-quark transition s --> d gamma, to the amplitudes of the hyperon radiative decay, Omega(-) --> Xi(-)gamma. We re-evaluate the Wilson coefficient of the effective operator responsible for this transition. We obtain a branching ratio which is comparable to the unitarity limit.

引用

页码：275 / 281

页数：7

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