Comments on color-suppressed hadronic B decays

被引:70
作者
Neubert, M [1 ]
Petrov, AA [1 ]
机构
[1] Cornell Univ, Newman Lab Nucl Studies, Ithaca, NY 14853 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0370-2693(01)01093-0
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Recent experimental results on the color-suppressed nonleptonic decays (B) over bar (0) --> D(*)(0)pi (0) provide evidence for a failure of the naive factorization model and for sizeable relative strong-interaction phases between class-1 and class-2 (B) over bar --> D(*)pi decay amplitudes. The allowed regions for the corresponding ratios of (complex) isospin amplitudes and a(2)/a(1) parameters are determined. The results are interpreted in the context of QCD factorization for the related class-1 amplitudes in the heavy-quark limit. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:50 / 56
页数:7
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