Three-body decays B -> phi(rho)K gamma in perturbative QCD approach
文献类型：期刊论文
| 作者 | Liu, JB ; Li, HN; Lu, CD; Wang C(王超); Liu JB(刘景斌); Lv CD(吕才典); Wang, C
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| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2018 |
| 卷号 | 97期号:3页码:34033 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.97.034033 |
| 文献子类 | Article |
| 英文摘要 | We study the three-body radiative decays B -> phi(rho)K gamma induced by a flavor-changing neutral current in the perturbative QCD approach. Pseudoscalar-vector (PV) distribution amplitudes (DAs) are introduced for the final-state phi K (rho K) pair to capture important infrared dynamics in the region with a small PV-pair invariant mass. The dependence of these PV DAs on the parton momentum fraction is parametrized in terms of the Gegenbauer polynomials, and the dependence on the meson momentum fraction is derived through their normalizations to timelike PV form factors. In addition to the dominant electromagnetic penguin, the subleading chromomagnetic penguin, quark-loop and annihilation diagrams are also calculated. After determining the PV DAs from relevant branching-ratio data, the direct CP asymmetries and decay spectra in the PV-pair invariant mass are predicted for each B -> phi(rho)K gamma mode. |
| 电子版国际标准刊号 | 2470-0029 |
| WOS关键词 | AXIAL-VECTOR MESONS ; EVOLUTION-EQUATIONS ; STANDARD MODEL ; PI-PI ; THRESHOLD |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000426170300005 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285674]  |
| 专题 | 高能物理研究所_理论物理室 |
| 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 | Liu, JB,Li, HN,Lu, CD,et al. Three-body decays B -> phi(rho)K gamma in perturbative QCD approach[J]. PHYSICAL REVIEW D,2018,97(3):34033. |
| APA | Liu, JB.,Li, HN.,Lu, CD.,王超.,刘景斌.,...&Wang, C.(2018).Three-body decays B -> phi(rho)K gamma in perturbative QCD approach.PHYSICAL REVIEW D,97(3),34033. |
| MLA | Liu, JB,et al."Three-body decays B -> phi(rho)K gamma in perturbative QCD approach".PHYSICAL REVIEW D 97.3(2018):34033. |
入库方式： OAI收割
来源：高能物理研究所
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