CHIRAL PERTURBATION-THEORY FOR B-]D-ASTERISK AND B-]D SEMILEPTONIC TRANSITION MATRIX-ELEMENTS AT ZERO RECOIL

被引：36

作者：

RANDALL, L ^{[1
]}

WISE, MB ^{[1
]}

机构：

[1] CALTECH,PASADENA,CA 91125

来源：

PHYSICS LETTERS B | 1993年 / 303卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(93)90057-O

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Heavy quark symmetry predicts the value of B-->D and B-->D* transition matrix elements of the current cgamma(mu)BAR(1-gamma5)b, at zero recoil (where in the rest frame of the B the D or D* is also at rest). We use chiral perturbation theory to compute the leading corrections to these predictions which are generated at low momentum, below the chiral symmetry breaking scale.

引用

页码：135 / 139

页数：5

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