Effective radius for production of baryon-antibaryon pairs from psi( )decays

doi:10.1103/PhysRevD.104.054018

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Effective radius for production of baryon-antibaryon pairs from psi( )decays
	Wu, Shu-Ming ; Wu, Jia-Jun ; Zou, Bing-Song
刊名	PHYSICAL REVIEW D
	2021
卷号	104 期号:5 页码:54018
关键词	J/PSI
ISSN号	2470-0010
DOI	10.1103/PhysRevD.104.054018
英文摘要	By using the covariant L-S scheme for the partial wave analysis, we deduce the ratios between the S-wave and D-wave contributions from the recent data of psi(1(-)) -> B-8 (1/2(+))(B) over bar (8) (1/2(-)) from the BESIII Collaboration. For the J/psi -> Lambda(Lambda) over bar and J/psi(psi(2S)) -> Sigma(+)(Sigma) over bar (-), the ratios are fixed, and the average angular momenta are computed to estimate the effective radii of these processes. The results show that the effective radii of these decays of J/psi(psi(2S)) are very small, which are around 0.04 fm. Thus, it is a nice place to search excited baryon resonances with a lower spin in the decays of J/psi(psi(2S)). Furthermore, for the other psi(1(-)) -> B-8(1/2(+))(B) over bar (8)(1/2(-)) reactions, we propose some methods to get such effective radius.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27609]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China 2.[Wu, Shu-Ming 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Wu, Jia-Jun 5.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat S, Changsha 410081, Peoples R China
推荐引用方式 GB/T 7714	Wu, Shu-Ming,Wu, Jia-Jun,Zou, Bing-Song. Effective radius for production of baryon-antibaryon pairs from psi( )decays[J]. PHYSICAL REVIEW D,2021,104(5):54018.
APA	Wu, Shu-Ming,Wu, Jia-Jun,&Zou, Bing-Song.(2021).Effective radius for production of baryon-antibaryon pairs from psi( )decays.PHYSICAL REVIEW D,104(5),54018.
MLA	Wu, Shu-Ming,et al."Effective radius for production of baryon-antibaryon pairs from psi( )decays".PHYSICAL REVIEW D 104.5(2021):54018.