| Technicolor corrections on B-s,B-d ->gamma gamma decays in QCD factorization |
| Xiao, ZJ; Lv CD(吕才典) ; Lu, CD; Huo, WJ
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| 2003
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| 发表期刊 | PHYSICAL REVIEW D
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| 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
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| 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. |
| 文章类型 | Article
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| 学科领域 | Astronomy & Astrophysics; Physics
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| 研究领域[WOS] | Astronomy & Astrophysics
; Physics
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| DOI | 10.1103/PhysRevD.67.094021
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| URL | 查看原文
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| 语种 | 英语
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| WOS类目 | Astronomy & Astrophysics
; Physics, Particles & Fields
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| WOS记录号 | WOS:000183313000037
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/240877
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| 专题 | 理论物理室
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| 作者单位 | 中国科学院高能物理研究所
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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.
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| 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.
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| 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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