Can the two-pole structure of the D0∗ (2300) be understood from recent lattice data?
文献类型：期刊论文
| 作者 | Asokan, Anuvind; Tang, Meng-Na; Guo, Feng-Kun ; Hanhart, Christoph; Kamiya, Yuki; Meissner, Ulf-G.
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| 刊名 | EUROPEAN PHYSICAL JOURNAL C
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| 出版日期 | 2023 |
| 卷号 | 83期号:9页码:850 |
| ISSN号 | 1434-6044 |
| 关键词 | HEAVY MESONS |
| DOI | 10.1140/epjc/s10052-023-11953-6 |
| 英文摘要 | It was demonstrated in a series of papers employing unitarized chiral perturbation theory that the phenomenology of the scalar open-charm state, the D-0(& lowast;)(2300), can be understood as the interplay of two poles, corresponding to two scalar-isospin doublet states with different SU(3) flavor content. Within this formalism the lightest open charm positive parity states emerge as being dynamically generated from the scattering of the Goldstone-boson octet off D mesons, a picture that at the same time solves various problems that the experimental observations posed. However, in recent lattice studies of D pi scattering at different pion masses only one pole was reported in the D-0 channel, while it was not possible to extract reliable parameters of a second pole from the lattice data. In this paper we demonstrate how this seeming contradiction can be understood and that imposing SU(3) constraints on the fitting amplitudes allows one to extract information on the second pole from the lattice data with minimal bias. The results may also be regarded as a showcase how approximate symmetries can be imposed in the K-matrix formalism to reduce the number of parameters. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27935]  |
| 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.[Asokan, Anuvind 2.Hanhart, Christoph 3.Meissner, Ulf-G.] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany 4.Meissner, Ulf-G.] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany 5.[Tang, Meng-Na 6.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 7.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 8.Beihang Univ, Peng Huanwu Collaborat Ctr Res & Educ, Beijing 100191, Peoples R China 9.[Kamiya, Yuki 10.Meissner, Ulf-G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany |
| 推荐引用方式 GB/T 7714 | Asokan, Anuvind,Tang, Meng-Na,Guo, Feng-Kun,et al. Can the two-pole structure of the D0∗ (2300) be understood from recent lattice data?[J]. EUROPEAN PHYSICAL JOURNAL C,2023,83(9):850. |
| APA | Asokan, Anuvind,Tang, Meng-Na,Guo, Feng-Kun,Hanhart, Christoph,Kamiya, Yuki,&Meissner, Ulf-G..(2023).Can the two-pole structure of the D0∗ (2300) be understood from recent lattice data?.EUROPEAN PHYSICAL JOURNAL C,83(9),850. |
| MLA | Asokan, Anuvind,et al."Can the two-pole structure of the D0∗ (2300) be understood from recent lattice data?".EUROPEAN PHYSICAL JOURNAL C 83.9(2023):850. |
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来源：理论物理研究所
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