Study of B-c(-)-> X(3872)pi (-) (K-) decays in the covariant light-front approach
文献类型：期刊论文
| 作者 | Wang W(王伟); Shen YL(沈月龙); Lv CD(吕才典) ; Wang, W; Shen, YL; Lu, CD
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2007 |
| 卷号 | 51期号:4页码:841-847 |
| 通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | In the covariant light-front quark model, we calculate the form factors of B-c(-) -> J/psi and B-c(-) -> X(3872). Since the factorization of the exclusive processes B-c(-) -> J/psi pi b(-) (K-) and B-c(-) -> X(3872)pi(-) (K-) can be proved in the soft-collinear effective theory, we can easily get the branching ratios for these decays from the form factors. Taking the uncertainties into account, our results for the branching ratio of B-c(-) -> J/psi pi(-)(K-) are consistent with previous studies. By identifying X(3872) as a 1(++) charmonium state, we obtain BR(B-c(-) -> X(3872)pi(-)) = (1.7(-0.6-0.2-0.4)(+0.7+0.1+0.4)) x 10(-4) and BR(B-c(-) -> X(3872)K-) = ((+0.5+0.1+0.3)(1.3-0.5-0.2-0.3)) x 10(-5). Assuming X(3872) to be a 1(--) state, the branching ratios will be one order of magnitude larger than those of the 1++ state. These results can easily be used to test the charmonium description for this mysterious meson X(3872) at the LHCb experiment. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000250869700006 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238584]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_实验物理中心 |
| 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 W,Shen YL,Lv CD,et al. Study of B-c(-)-> X(3872)pi (-) (K-) decays in the covariant light-front approach[J]. EUROPEAN PHYSICAL JOURNAL C,2007,51(4):841-847. |
| APA | 王伟,沈月龙,吕才典,Wang, W,Shen, YL,&Lu, CD.(2007).Study of B-c(-)-> X(3872)pi (-) (K-) decays in the covariant light-front approach.EUROPEAN PHYSICAL JOURNAL C,51(4),841-847. |
| MLA | 王伟,et al."Study of B-c(-)-> X(3872)pi (-) (K-) decays in the covariant light-front approach".EUROPEAN PHYSICAL JOURNAL C 51.4(2007):841-847. |
入库方式： OAI收割
来源：高能物理研究所
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