Exclusive semileptonic decays of B mesons to orbitally excited D mesons in the relativistic quark model

被引：15

作者：

Ebert, D

Faustov, RN

Galkin, VO

机构：

[1] Humboldt Universitat Berlin, Inst Phys, D-10115 Berlin, Germany

[2] Russian Acad Sci, Sci Council Cybernet, Moscow 117333, Russia

来源：

PHYSICS LETTERS B | 1998年 / 434卷 / 3-4期

关键词：

exclusive semileptonic decays; orbitally excited meson states; decay form factors; relativistic quark model; heavy quark expansion;

D O I：

10.1016/S0370-2693(98)00758-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Exclusive semileptonic B meson decays to orbitally excited D mesons are investigated in the infinitely heavy quark Limit in the framework of the relativistic quark model based on the quasipotential approach. The B-->D**e nu Isgur-Wise functions tau(3/2)(w) and tau(1/2)(w) are determined. It is found that the relativistic transformation of the meson wave functions (Wigner rotation of the Light quark spin) contribute already at the leading order of the heavy quark expansion. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：365 / 372

页数：8

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