Electroweak penguin effects in charmless B-+/-,B-0->PP and PV decays

被引：35
|
作者：
Du, DS
Guo, LB
机构：
[1] ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA
[2] HENAN NORMAL UNIV,DEPT PHYS,XINXIANG 453002,HENAN,PEOPLES R CHINA
来源：
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1997年 / 75卷 / 01期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1007/s002880050441
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Using the next-to-leading order low energy effective Hamiltonian for \Delta B\ = 1, Delta C = Delta U = 0 transitions, the contributions of electroweak penguin operators in charmless B-+/-,B-0 --> PP and PV decays are estimated in the standard model. We find that, for some channels, the electroweak penguin effects can enhance or reduce the QCD penguin and/or tree level contributions by at least 30%, and can even play a dominant role.
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页码：9 / 15
页数：7
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