Scalar mesons in weak semileptonic decays of B((s))
文献类型：期刊论文
| 作者 | Wang YM(王玉明); Lv CD(吕才典) ; Wang, YM; Aslam, MJ; Lu, CD
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2008 |
| 卷号 | 78期号:1页码:14006 |
| 通讯作者 | [Wang, Yu-Ming ; Aslam, M. Jamil ; Lue, Cai-Dian] Inst High Energy Phys, Beijing 100049, Peoples R China ; [Aslam, M. Jamil] COMSATS Inst Informat Technol Islamabad, Islamabad, Pakistan |
| 英文摘要 | The transition form factors of B((s)) -> S, with S denoting a scalar meson, are investigated in the light-cone sum rules approach. The numerical values are approximately twice the number estimated in the light-front quark model and QCD sum rules approach. Using these form factors, we present the analysis of the decay rates for B -> a(0)(1450)l (nu) over bar (l), B -> K(0)(*)(1430)l (l) over bar, B(s) -> K(0)(*)(1430)l (nu) over tilde (l), and B(s) -> f(0)(1500)l (l) over bar with l = e, mu, tau. The results indicate that magnitudes of BR((B) over bar (0) -> a(0)(1450)l (nu) over bar (l)) and BR(B(s) -> K(0)(*)(1430)l (nu) over bar (l)) arrive at the order of 10(-4), which can be measured in future experiments to clarify the inner structure of scalar mesons. It is also observed that BR(B -> K(0)(*)(1430)tau(+)tau(-)) and BR(B(s) -> f(0)(1500)tau(+)tau(-)) are an order of magnitude smaller than the corresponding channels of e(+)e(-) and mu(+)mu(-) final states due to the heavily suppressed phase space. Moreover, the longitudinal lepton polarization asymmetry for B -> K(0)(*)(1430)l (l) over bar and B(s) -> f(0)(1500)l (l) over bar are also investigated, whose values are close to -1 for the e(+)e(-) and mu(+)mu(-) pair except for the region close to the endpoints. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258636400037 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240416]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_计算中心 |
| 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 | Wang YM,Lv CD,Wang, YM,et al. Scalar mesons in weak semileptonic decays of B((s))[J]. PHYSICAL REVIEW D,2008,78(1):14006. |
| APA | 王玉明,吕才典,Wang, YM,Aslam, MJ,&Lu, CD.(2008).Scalar mesons in weak semileptonic decays of B((s)).PHYSICAL REVIEW D,78(1),14006. |
| MLA | 王玉明,et al."Scalar mesons in weak semileptonic decays of B((s))".PHYSICAL REVIEW D 78.1(2008):14006. |
入库方式： OAI收割
来源：高能物理研究所
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