Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model | |
Ping, RG; Chiang, HC; Zou, BS | |
刊名 | PHYSICAL REVIEW D |
2002-09-01 | |
卷号 | 66页码:7 |
ISSN号 | 0556-2821 |
DOI | 10.1103/PhysRevD.66.054020 |
英文摘要 | From J/psi-->p (p) over bar, Lambda(&ULambda;) over bar, Sigma(0)(&USigma;) over bar (0), and Xi(+)Xi(-) decays we study the structure of baryons including nucleons, Lambda, Sigma, and Xi in the naive quark model. Considering the lowest-order quark diagrams for baryon-antibaryon pair production from J/psi decays we calculate the baryon-antibaryon angular distributions. Using the experimental data for the angular distribution for the process J/psi-->p (p) over bar produced in e(+)-e(-) collisions, we determine the range of parameters for the quark mass m(q) and the harmonic-oscillator parameter beta in the quark model. With these parameters, we calculate the branching fractions and angular distributions for the above J/psi decay processes and find that the calculated values are comparable with the measured ones. |
WOS关键词 | CHROMODYNAMICS |
WOS研究方向 | Astronomy & Astrophysics ; Physics |
语种 | 英语 |
出版者 | AMERICAN PHYSICAL SOC |
WOS记录号 | WOS:000178460700041 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.186/handle/113462/37753] |
专题 | 中国科学院近代物理研究所 |
通讯作者 | Ping, RG |
作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China 2.CCAST, World Lab, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 4.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Ping, RG,Chiang, HC,Zou, BS. Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model[J]. PHYSICAL REVIEW D,2002,66:7. |
APA | Ping, RG,Chiang, HC,&Zou, BS.(2002).Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model.PHYSICAL REVIEW D,66,7. |
MLA | Ping, RG,et al."Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model".PHYSICAL REVIEW D 66(2002):7. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论