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Role of electromagnetic dipole operator in the electroweak penguin dominated vector meson decays of B meson
Lv CD(吕才典); Shen YL(沈月龙); Wang W(王伟); Lu, CD; Shen, YL; Wei, W
2006
发表期刊CHINESE PHYSICS LETTERS
卷号23期号:10页码:2684-2687
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要The pure annihilation type decays B-d(0) -> phi gamma and B-s -> rho gamma 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 R(B-d(0) -> phi gamma) similar or equal to 1 X 10(-11) and R(B-s -> rho gamma) similar to (6 - 16) x 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 B-s -> phi rho and B-s -> omega phi, which is comparable to the longitudinal part. These effects can be detected in the LHCb experiment and the super-B factories.
学科领域Physics
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语种英语
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000241040300017
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239809
专题理论物理室
作者单位中国科学院高能物理研究所
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Lv CD,Shen YL,Wang W,et al. Role of electromagnetic dipole operator in the electroweak penguin dominated vector meson decays of B meson[J]. CHINESE PHYSICS LETTERS,2006,23(10):2684-2687.
APA 吕才典,沈月龙,王伟,Lu, CD,Shen, YL,&Wei, W.(2006).Role of electromagnetic dipole operator in the electroweak penguin dominated vector meson decays of B meson.CHINESE PHYSICS LETTERS,23(10),2684-2687.
MLA 吕才典,et al."Role of electromagnetic dipole operator in the electroweak penguin dominated vector meson decays of B meson".CHINESE PHYSICS LETTERS 23.10(2006):2684-2687.
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