Knowledge Management System of Institute of Theoretical Physics, CAS
| Cao, X1; Dai, JP; Xie, YP | |
| Vector mesons and electromagnetic form factor of the Lambda hyperon | |
| Source Publication | PHYSICAL REVIEW D
 |
| Language | 英语 |
| Keyword | TIME-LIKE REGION STATE CHROMODYNAMICS P(P)OVER-BAR PSI(3770) E(+)E(-) VICINITY Y(2175) HYBRID |
| Abstract | The measured electromagnetic form factors of A hyperon in the timelike region are significantly deviated from pQCD prediction. We attribute the nonvanishing cross section near threshold to be the contribution of below-threshold phi(2170) state, supporting its exotic structure. Above the threshold, we find significant role of a wide vector meson with the mass of around 2.34 GeV, which would be the same state present in pp annihilation reactions. As a result, we give a satisfactory description of the behavior of existing data without modifying pQCD expectation. |
| 2018 | |
| ISSN | 2470-0010 |
| Volume | 98Issue:9Pages:94006 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| MOST Discipline Catalogue | Astronomy & Astrophysics ; Physics, Particles & Fields |
| DOI | 10.1103/PhysRevD.98.094006 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/22787 |
| Collection | 理论物理所科研产出_SCI论文 |
| Affiliation | 1.Chinese Acad Sci, CAS Key Lab High Precis Nucl Spect, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Ctr Nucl Matter Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, MOE Key Lab Particle Phys Astrophys & Cosmol, INPAC, Shanghai 200240, Peoples R China 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
| Recommended Citation GB/T 7714 | Cao, X,Dai, JP,Xie, YP. Vector mesons and electromagnetic form factor of the Lambda hyperon[J]. PHYSICAL REVIEW D,2018,98(9):94006. |
| APA | Cao, X,Dai, JP,&Xie, YP.(2018).Vector mesons and electromagnetic form factor of the Lambda hyperon.PHYSICAL REVIEW D,98(9),94006. |
| MLA | Cao, X,et al."Vector mesons and electromagnetic form factor of the Lambda hyperon".PHYSICAL REVIEW D 98.9(2018):94006. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment