Recently observed P-c as molecular states and possible mixture of P-c (4457)
文献类型：期刊论文
| 作者 | Xu, Hao; Li, Qiang; Chang, Chao-Hsi; Wang, Guo-Li |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2020 |
| 卷号 | 101期号:5页码:54037 |
| 关键词 | HIDDEN-CHARM PENTAQUARK B-C HEAVY DECAY |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.101.054037 |
| 英文摘要 | A recently observed spectrum of P-c states exhibits a strong link to Sigma(c)(D) over bar(*) thresholds. In spite of successful molecular interpretations, we still push forward to wonder whether there exist finer structures. Utilizing the effecitve Lagrangians respecting heavy quark symmetry and chiral symmetry, as well as instantaneous Bethe-Salpeter equations, we investigate the Sigma(c)(D) over bar(*) interactions and three P-c, states. We confirm that P-c (4312) and P-c (4440) are good candidates of Sigma(c)(D) over bar and Sigma(c)(D) over bar(*) molecules with spin-1/2, respectively. Unlike other molecular calculations, our results indicate the P-c (4457) signal might be a mixture of spin-3/2 and spin-1/2 Sigma(c)(D) over bar(*) molecules, where the latter one appears to be an excitation of P-c (4440). Therefore we conclude that, confronting three LHCb P-c signals, there may exist not three, but four molecular states. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27078]  |
| 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.Hebei Univ, Dept Phys, Baoding 071002, Peoples R China 2.Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710129, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 5.CCAST World Lab, POB 8730, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Hao,Li, Qiang,Chang, Chao-Hsi,et al. Recently observed P-c as molecular states and possible mixture of P-c (4457)[J]. PHYSICAL REVIEW D,2020,101(5):54037. |
| APA | Xu, Hao,Li, Qiang,Chang, Chao-Hsi,&Wang, Guo-Li.(2020).Recently observed P-c as molecular states and possible mixture of P-c (4457).PHYSICAL REVIEW D,101(5),54037. |
| MLA | Xu, Hao,et al."Recently observed P-c as molecular states and possible mixture of P-c (4457)".PHYSICAL REVIEW D 101.5(2020):54037. |
入库方式： OAI收割
来源：理论物理研究所
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