Branching ratios, forward-backward asymmetries, and angular distributions of B -> K*(2)l(+)l(-) in the standard model and two new physics scenarios
Li RH(李润辉); Lv CD(吕才典); Wang W(王伟); Li, RH; Lu, CD; Wang, W
刊名PHYSICAL REVIEW D
2011
卷号83期号:3页码:34034
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.83.034034
通讯作者[Li, Run-Hui ; Lue, Cai-Dian] Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, Run-Hui] Yonsei Univ, Dept Phys, Seoul 120479, South Korea ; [Li, Run-Hui] Yonsei Univ, IPAP, Seoul 120479, South Korea ; [Wang, Wei] Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany
文章类型Article
英文摘要We analyze the B -> K*(2)(-> K pi)l(+)l(-) ( with l = e, mu, tau) decay in the standard model and two new physics scenarios: the vectorlike quark model and family nonuniversal Z' models. We derive the differential angular distributions using the recently calculated form factors in the perturbative QCD approach. Branching ratios, polarizations, forward-backward asymmetries, and transversity amplitudes are predicted, from which we find a promising prospective to observe this channel in future experiments. We update the constraints on effective Wilson coefficients and/or free parameters in these two new physics scenarios by making use of the B -> K*l(+)l(-) and b -> sl(+)l(-) experimental data. Their impact on B -> K*(2)l(+)l(-) is subsequently explored and, in particular, the zero-crossing point for the forward-backward asymmetry in these new physics scenarios can sizably deviate from the standard model. In addition we also generalize the analysis to a similar mode, B-s -> f'(2)(1525)(-> K+K-)l(+)l(-).
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000287730700002
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240566
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Li RH,Lv CD,Wang W,et al. Branching ratios, forward-backward asymmetries, and angular distributions of B -> K*(2)l(+)l(-) in the standard model and two new physics scenarios[J]. PHYSICAL REVIEW D,2011,83(3):34034.
APA 李润辉,吕才典,王伟,Li, RH,Lu, CD,&Wang, W.(2011).Branching ratios, forward-backward asymmetries, and angular distributions of B -> K*(2)l(+)l(-) in the standard model and two new physics scenarios.PHYSICAL REVIEW D,83(3),34034.
MLA 李润辉,et al."Branching ratios, forward-backward asymmetries, and angular distributions of B -> K*(2)l(+)l(-) in the standard model and two new physics scenarios".PHYSICAL REVIEW D 83.3(2011):34034.
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