Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons
文献类型：期刊论文
| 作者 | Yu, Hao; Zhao, Ze2; Zhang, Ailin |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2020 |
| 卷号 | 102期号:5页码:54013 |
| 关键词 | RELATIVIZED QUARK-MODEL HEAVY-LIGHT MESONS D-S DECAY ANNIHILATION |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.102.054013 |
| 英文摘要 | In charmed D and D-s mesons sector, the matrix of a Hamiltonian in a quark potential model is computed in the 2(3)S(1) and 1(3)D(1) subspace. The masses of four mixed states of 2(3)S(1) and 1(3)D(1) denoted with D-1* (2635), D-1*(2739), D-s1* (2715) and D-s1* (2805) are obtained. It is an off-diagonal part of the spin-orbit tensor interaction that causes the mixing between the 2(3)S(1) and 1(3)D(1) states. The mixing angles between the 2(3)S(1) and 1(3)D(1) states are tiny. Under the mixing, a(3)P(0) model is employed to compute the hadronic decay widths of all OZI-allowed decay channels of the four mixed states. The two light mixed states D-1*(2635) and D-s(1)*(2715) are close in mass to D-J*(2600) and D-s1*(2700), while the two heavy mixed states D-1*(2739) and Di(s1)*(2805) are lighter in mass than D(2750) and D-s1*(2860). The mixing angles obtained from dynamical interaction are inconsistent with the mixing angles obtained from hadronic decay. Based on mass spectra and hadronic decay analyses, D-J*(2600), D(2750), D-s1*(2700), and D-s1*(2860) are impossibly the mixed states of 2(3)S(1) and 1(3)D(1) at the small mixing angles. The inconsistence implies that D-1*(2760) and D-s1*(2860) have not been properly resolved from present experimental data, or there exist large unknown off-diagonal interactions that result in large mixing angles. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27217]  |
| 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.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China 2.Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Hao,Zhao, Ze,Zhang, Ailin. Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons[J]. PHYSICAL REVIEW D,2020,102(5):54013. |
| APA | Yu, Hao,Zhao, Ze,&Zhang, Ailin.(2020).Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons.PHYSICAL REVIEW D,102(5),54013. |
| MLA | Yu, Hao,et al."Dynamical mixing between 2(3)S(1) and 1(3)D(1) charmed mesons".PHYSICAL REVIEW D 102.5(2020):54013. |
入库方式： OAI收割
来源：理论物理研究所
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