The B-c -> psi(2S)pi, eta(c)(2S)pi decays in the perturbative QCD approach
文献类型：期刊论文
| 作者 | Rui, Z; Wang WF(王文飞); Wang, WF; Wang, GX; Song, LH; Lu, CD; Lv CD(吕才典)
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2015 |
| 卷号 | 75期号:6页码:293 |
| 英文摘要 | Nonleptonic two-body B-c decays including radially excited psi(2S) or eta(c)(2S) mesons in the final state are studied using the perturbative QCD approach based on k(T) factorization. The charmonium distribution amplitudes are extracted from the n = 2, l = 0 Schrodinger states for the harmonic oscillator potential. Utilizing these distribution amplitudes, we calculate the numerical results of the B-c -> psi(2S), eta(c)(2S) transition form factors and branching fractions of B-c -> psi(2S)pi, eta(c)(2S)pi decays. The ratio between two decay modes B-c -> psi(2S)pi and B-c -> J/psi pi is compatible with the experimental data within uncertainties, which indicates that the harmonic-oscillator wave functions for psi(2S) and eta(c)(2S) work well. It is found that the branching fraction of B-c -> eta(c)(2S)pi, which is dominated by the twist-3 charmonium distribution amplitude, can reach the order of 10(-3). We hope it can be measured soon in the LHCb experiment. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 收录类别 | SCI |
| WOS记录号 | WOS:000356969300001 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228394]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Rui, Z,Wang WF,Wang, WF,et al. The B-c -> psi(2S)pi, eta(c)(2S)pi decays in the perturbative QCD approach[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(6):293. |
| APA | Rui, Z.,王文飞.,Wang, WF.,Wang, GX.,Song, LH.,...&吕才典.(2015).The B-c -> psi(2S)pi, eta(c)(2S)pi decays in the perturbative QCD approach.EUROPEAN PHYSICAL JOURNAL C,75(6),293. |
| MLA | Rui, Z,et al."The B-c -> psi(2S)pi, eta(c)(2S)pi decays in the perturbative QCD approach".EUROPEAN PHYSICAL JOURNAL C 75.6(2015):293. |
入库方式： OAI收割
来源：高能物理研究所
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