Study of the structure of baryons from J/psi -> B(B)over-bar decays in the quark model

doi:10.1103/PhysRevD.66.054020

	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.