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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
DOI10.1103/PhysRevD.67.094021
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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
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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
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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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