SEMILEPTONIC-B DECAYS INTO CHARMED P-WAVE MESONS AND THE HEAVY-QUARK SYMMETRY

被引:71
作者
COLANGELO, P
NARDULLI, G
PAVER, N
机构
[1] UNIV BARI, DIPARTIMENTO FIS, I-70126 BARI, ITALY
[2] UNIV TRIESTE, DIPARTIMENTO FIS TEOR, I-34014 TRIESTE, ITALY
[3] IST NAZL FIS NUCL, SEZ TRIESTE, TRIESTE, ITALY
基金
美国国家科学基金会;
关键词
D O I
10.1016/0370-2693(92)91503-2
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In the framework of QCD sum rules we evaluate the B meson semileptonic transitions to positive-parity charmed states. We consider the limit of infinitely heavy quarks and determine the two universal Isgur-Wise functions. We also compare this description with the results obtained for finite values of heavy-quark masses. The computed branching ratios for these decays are of the order of 10(-3).
引用
收藏
页码:207 / 215
页数:9
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