Are the Y states around 4.6 GeV from e(+)e(-) annihilation higher charmonia?
文献类型：期刊论文
| 作者 | Wang, Jun-Zhang1,2,3; Qian, Ri-Qing1,2,3; Liu, Xiang1,2,3; Matsuki, Takayuki4,5 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2020-02-05 |
| 卷号 | 101期号:3页码:13 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.101.034001 |
| 通讯作者 | Liu, Xiang(xiangliu@lzu.edu.cn) |
| 英文摘要 | In this work, we present the mass spectrum of higher charmonia around and above 4.6 GeV by adopting the unquenched potential model. We perform a combined fit to the updated experimental data of e(+)e(-) -> psi(2S)pi(+)pi(-) and e(+)e(-) Lambda(c)(Lambda) over bar (c). To understand the "platform" structure observed in the range of 4.57-4.60 GeV existing in the Lambda(c)(Lambda) over bar (c) invariant mass spectrum of e(+)e(-) -> Lambda(c)(Lambda) over bar (c) of BESIII, we introduce two resonances in this combined fit to e(+)e(-) -> Psi(2S)pi(+)pi(-) and e(+)e(-) -> Lambda(c)(Lambda) over bar (c), which have resonance parameters, m(Y1) = 4585 +/- 2 MeV, Gamma(Y1) = 29.8 +/- 8.0 MeV, m(Y2) = 4676 +/- 7 MeV, and Gamma(Y2) = 85.7 +/- 15.0 MeV. Furthermore, combining with our theoretical results, we indicate that the two charmoniumlike Y states can be due to two higher charmonia, which are mixtures of 6S and 5D c (c) over bar states. Their two-body open-charm decay behaviors are given. Under the same framework, our analysis of the data of e(+)e(-) -> Ds+Ds1 (2536)(-) recently released by Belle supports the introduction of these two higher charmonia around 4.6 GeV. Additionally, we predict the masses and two-body open-charm decays of six higher charmonia psi(nS) and psi(mD) with n = 7, 8, 9 and m = 6, 7, 8 above 4.6 GeV. The search for these higher charmonia will be an interesting issue for the running BESIII and BelleII, and even the possible Super Tau-Charm Factory discussed in China. |
| WOS关键词 | GENERAL-THEORY ; PENTAQUARK ; COLLISIONS ; PARTICLES |
| 资助项目 | China National Funds for Distinguished Young Scientists[11825503] ; National Program for Support of Top-notch Young Professionals |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000511198700003 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | China National Funds for Distinguished Young Scientists ; National Program for Support of Top-notch Young Professionals |
| 源URL | [http://119.78.100.186/handle/113462/141651]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Liu, Xiang |
| 作者单位 | 1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Tokyo Kasei Univ, 1-18-1 Kaga, Tokyo 1738602, Japan 5.RIKEN, Theoret Res Div, Nishina Ctr, Wako, Saitama 3510198, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Jun-Zhang,Qian, Ri-Qing,Liu, Xiang,et al. Are the Y states around 4.6 GeV from e(+)e(-) annihilation higher charmonia?[J]. PHYSICAL REVIEW D,2020,101(3):13. |
| APA | Wang, Jun-Zhang,Qian, Ri-Qing,Liu, Xiang,&Matsuki, Takayuki.(2020).Are the Y states around 4.6 GeV from e(+)e(-) annihilation higher charmonia?.PHYSICAL REVIEW D,101(3),13. |
| MLA | Wang, Jun-Zhang,et al."Are the Y states around 4.6 GeV from e(+)e(-) annihilation higher charmonia?".PHYSICAL REVIEW D 101.3(2020):13. |
入库方式： OAI收割
来源：近代物理研究所
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