chi(b)(3P) multiplet revisited: Hyperfine mass splitting and radiative transitions
文献类型：期刊论文
| 作者 | Anwar, MN; Lu, Y1,5; Zou, BS
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2019 |
| 卷号 | 99期号:9页码:94005 |
| 关键词 | CHARMONIUM CCBAR |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.99.094005 |
| 英文摘要 | Invoked by the recent CMS observation regarding candidates of the chi(b)(3P) multiplet, we analyze the hyperfine and mass splittings among the 3P multiplet in our unquenched quark model studies. The mass difference of chi(b2) and chi(b1) in the 3P multiplet measured by the CMS Collaboration (10.6 +/- 0.64 +/- 0.17 MeV) is very close to our theoretical prediction (12 MeV). Our corresponding mass splitting of chi(b1) and chi(b0) enables us to predict more precisely the mass of chi(b0)(3P) to be (10490 +/- 3) MeV. Moreover, we predict ratios of the radiative decays of chi(bJ)(nP) candidates, both in the unquenched quark model and quark potential model. Our predicted relative branching fraction of chi(b0)(3P) -> Upsilon(3S)(gamma) is one order of magnitude smaller than chi(b2)(3P); this naturally explains the nonobservation of chi(b0)(3P) in the recent CMS search. We hope these results provide useful references for forthcoming experimental searches. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23438]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany 5.Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany 6.Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany |
| 推荐引用方式 GB/T 7714 | Anwar, MN,Lu, Y,Zou, BS. chi(b)(3P) multiplet revisited: Hyperfine mass splitting and radiative transitions[J]. PHYSICAL REVIEW D,2019,99(9):94005. |
| APA | Anwar, MN,Lu, Y,&Zou, BS.(2019).chi(b)(3P) multiplet revisited: Hyperfine mass splitting and radiative transitions.PHYSICAL REVIEW D,99(9),94005. |
| MLA | Anwar, MN,et al."chi(b)(3P) multiplet revisited: Hyperfine mass splitting and radiative transitions".PHYSICAL REVIEW D 99.9(2019):94005. |
入库方式： OAI收割
来源：理论物理研究所
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