Ξc - Ξ′c mixing from lattice QCD
文献类型：期刊论文
| 作者 | Liu, Hang; Liu, Liuming1; Sun, Peng1; Sun, Wei3; Tan, Jin-Xin; Wang, Wei4; Yang, Yi-Bo ; Zhang, Qi-An
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2023 |
| 卷号 | 841页码:137941 |
| ISSN号 | 0370-2693 |
| 关键词 | 2ND-ORDER POWER CORRECTIONS QUARK EFFECTIVE THEORY |
| DOI | 10.1016/j.physletb.2023.137941 |
| 英文摘要 | In heavy quark limit, the lowest-lying charmed baryons with two light quarks can form an SU(3) triplet and sextet. The Xi(c) in the SU(3) triplet and Xi'(c) in the sextet have the same J(PC) quantum number and can mix due to the finite charm quark mass and the fact the strange quark is heavier than the up/down quark. We explore the Xi(c)-Xi'(c) mixing by calculating the two-point correlation functions of the Xi(c) and Xi'(c) baryons from lattice QCD. Based on the lattice data, we adopt two independent methods to determine the mixing angle between Xi(c) and Xi'(c). After making the chiral and continuum extrapolation, it is found that the mixing angle theta is 1.2 degrees +/- 0.1 degrees, which seems insufficient to account for the large SU(3) symmetry breaking effects found in weak decays of charmed baryons. (c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/28113]  |
| 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.Shanghai Jiao Tong Univ, Sch Phys & Astron, Key Lab Particle Astrophys & Cosmol MOE, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Modern Phys, Southern Ctr Nucl Sci Theory SCNT, Huizhou 516000, Guangdong, Peoples R China 6.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 7.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 8.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China 9.Beihang Univ, Sch Phys, Beijing 102206, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Hang,Liu, Liuming,Sun, Peng,et al. Ξc - Ξ′c mixing from lattice QCD[J]. PHYSICS LETTERS B,2023,841:137941. |
| APA | Liu, Hang.,Liu, Liuming.,Sun, Peng.,Sun, Wei.,Tan, Jin-Xin.,...&Zhang, Qi-An.(2023).Ξc - Ξ′c mixing from lattice QCD.PHYSICS LETTERS B,841,137941. |
| MLA | Liu, Hang,et al."Ξc - Ξ′c mixing from lattice QCD".PHYSICS LETTERS B 841(2023):137941. |
入库方式： OAI收割
来源：理论物理研究所
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