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Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model
Ping, RG; Chiang, HC; Zou, BS; Ping, RG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
2002
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号66期号:5页码:-
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.
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
关键词Chromodynamics
学科领域Physics
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收录类别SCI
WOS记录号WOS:000178460700041
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被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13450
专题理论物理所1978-2010年知识产出
通讯作者Ping, RG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
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GB/T 7714
Ping, RG,Chiang, HC,Zou, BS,et al. 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):-.
APA Ping, RG,Chiang, HC,Zou, BS,&Ping, RG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China..(2002).Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model.PHYSICAL REVIEW D,66(5),-.
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 66.5(2002):-.
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