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题名: Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model
作者: Ping, RG ;  Chiang, HC ;  Zou, BS
刊名: PHYSICAL REVIEW D
出版日期: 2002
卷号: 66, 期号:5, 页码:-
关键词: CHROMODYNAMICS
学科分类: Physics
通讯作者: Ping, RG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
部门归属: Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000178460700041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13450
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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(5):-.
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