Technicolor corrections on B-s,B-d ->gamma gamma decays in QCD factorization

doi:10.1103/PhysRevD.67.094021

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	Technicolor corrections on B-s,B-d ->gamma gamma decays in QCD factorization
	Xiao, ZJ; Lv CD(吕才典); Lu, CD; Huo, WJ
	2003
发表期刊	PHYSICAL REVIEW D
卷号	67 期号:9 页码:94021
通讯作者	Nanjing Normal Univ, Dept Phys, Jiangsu 210097, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; CAS, Inst High Energy Phys, Beijing 100039, Peoples R China ; Beijing Univ, Dept Phys, Beijing 100871, Peoples R China
文章类型	Article
摘要	Within the framework of the top-color-assisted technicolor (TC2) model, we calculate the new physics contributions to the branching ratios B(B-s,B-d-->gammagamma) and CP violating asymmetries r(CP)(-) (B-s,B-d-->gammagamma) in the QCD factorization based on the heavy-quark limit mbmuch greater thanLambda(QCD). Using the considered parameter space, we find that (a) for both B-s-->gammagamma and B-d-->gammagamma decays, the new physics contribution can provide a factor of two to six enhancement to their branching ratios, (b) for the B-s-->gammagamma decay, its direct CP violation is very small in both the SM and TC2 model, and (c) the CP violating asymmetry r(CP)(-) (B-d-->gammagamma) is around the ten percent level in both the SM and TC2 model, but the sign of CP asymmetry in the TC2 model is different from that in the SM.
学科领域	Astronomy & Astrophysics; Physics
研究领域[WOS]	Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI	10.1103/PhysRevD.67.094021
URL	查看原文
语种	英语
研究领域[WOS]	Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号	WOS:000183313000037
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ihep.ac.cn/handle/311005/240877
专题	理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xiao, ZJ,Lv CD,Lu, CD,et al. Technicolor corrections on B-s,B-d ->gamma gamma decays in QCD factorization[J]. PHYSICAL REVIEW D,2003,67(9):94021.
APA	Xiao, ZJ,吕才典,Lu, CD,&Huo, WJ.(2003).Technicolor corrections on B-s,B-d ->gamma gamma decays in QCD factorization.PHYSICAL REVIEW D,67(9),94021.
MLA	Xiao, ZJ,et al."Technicolor corrections on B-s,B-d ->gamma gamma decays in QCD factorization".PHYSICAL REVIEW D 67.9(2003):94021.

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