First lattice QCD calculation of semileptonic decays of charmed-strange baryons Xi(c)
文献类型：期刊论文
| 作者 | Zhang, Qi-An; Hua, Jun3; Huang, Fei3; Li, Renbo4; Li, Yuanyuan4; Lu, Caidian1,5; Sun, Peng4; Sun, Wei5; Wang, Wei3; Yang, Yibo2,6,7
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| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2022 |
| 卷号 | 46期号:1页码:11002 |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/ac2b12 |
| 英文摘要 | While the standard model is the most successful theory to describe all the interactions and constituents of elementary particle physics, it has been constantly scrutinized for over four decades. Weak decays of charm quarks can be used to measure the coupling strength between quarks in different families and serve as an ideal probe for CP violation. As the lowest charm-strange baryons with three different flavors, Xi(c) baryons (composed of csu or csd) have been extensively studied in experiments. In this study, we use state-of-the-art lattice QCD techniques to generate 2+1 clover fermion ensembles with two lattice spacings, a = (0.108, 0.080 fm). Then, we present the first ab-initio lattice QCD calculation of the Xi(c) -> Xi form factors. Our theoretical results for the Xi -> Xi l(+)v(l) decay widths are consistent with and approximately two times more precise than the latest measurements by the ALICE and Belle collaborations. Based on the latest experimental measurements, we independently obtain the quark-mixing matrix element vertical bar V-cs vertical bar, which is in good agreement with results from other theoretical approaches. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27752]  |
| 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, Inst High Energy Phys, Beijing 100049, Peoples R China 2.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 3.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai Key Lab Particle Phys & Cosmol, Key Lab Particle Astrophys & Cosmol,MOE, Shanghai 200240, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai Key Lab Particle Phys & Cosmol, INPAC,Key Lab Particle Astrophys & Cosmol,MOE, Shanghai 200240, Peoples R China 5.Nanjing Normal Univ, Nanjing 210023, Peoples R China 6.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 7.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 8.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Qi-An,Hua, Jun,Huang, Fei,et al. First lattice QCD calculation of semileptonic decays of charmed-strange baryons Xi(c)[J]. CHINESE PHYSICS C,2022,46(1):11002. |
| APA | Zhang, Qi-An.,Hua, Jun.,Huang, Fei.,Li, Renbo.,Li, Yuanyuan.,...&Yang, Yibo.(2022).First lattice QCD calculation of semileptonic decays of charmed-strange baryons Xi(c).CHINESE PHYSICS C,46(1),11002. |
| MLA | Zhang, Qi-An,et al."First lattice QCD calculation of semileptonic decays of charmed-strange baryons Xi(c)".CHINESE PHYSICS C 46.1(2022):11002. |
入库方式： OAI收割
来源：理论物理研究所
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