Nonfactorizable corrections to B→J/ψK -: art. no. 034004

被引：27
|
作者：
Melic, B [1 ]
机构：
[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
[2] Univ Wurzburg, Inst Phys & Astrophys, D-97074 Wurzburg, Germany
来源：
PHYSICAL REVIEW D | 2003年 / 68卷 / 03期
关键词：
D O I：
10.1103/PhysRevD.68.034004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We apply the method of QCD light-cone sum rules to calculate nonfactorizable contributions to the B-->J/psiK decay and estimate soft nonfactorizable corrections to the a(2) parameter. The corrections appear to be positive, favoring the positive sign of a(2), in agreement with recent theoretical considerations and experimental data. Our result also confirms expectations that in the color-suppressed decay nonfactorizable corrections are sizable.
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页数：14
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