Role of electromagnetic dipole operator in the electroweak penguin dominated vector meson decays of B meson

被引：18

作者：

Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918, Beijing 100049, China ^{[1
]}

机构：

[1] Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049

来源：

Chin. Phys. Lett. | 2006年 / 10卷 / 2684-2687期

关键词：

Bosons;

D O I：

10.1088/0256-307X/23/10/017

中图分类号：

学科分类号：

摘要：

The pure annihilation type decays 0dφγ and Bsργ receive only colour suppressed penguin contributions with a very small branching ratio in the standard model. When we include the previously neglected electromagnetic dipole operator, the branching ratios can be enhanced to (0dφγ)1×10-11 and (Bsργ)∼(6-16)×10-10, which are one order magnitude larger than previous study using the QCD factorization approach. The new effect can also give a large contribution, of order 10 -9, to transverse polarization of Bφρ and Bωφ, which is comparable to the longitudinal part. These effects can be detected in the LHCb experiment and the super-B factories. © 2006 Chinese Physical Society and IOP Publishing Ltd.

引用

页码：2684 / 2687

页数：3

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