摘要
本文在手征夸克模型和夸克蜕定域色屏蔽模型框架下,利用共振群方法研究了角动量J=0和J=1的pΛ体系,发现在这两个模型中pΛ都不是一个束缚态,但在夸克蜕定域色屏蔽模型中,我们在pΛ散射过程中发现了一个IJ=120的pΣ共振态.
The pΛ systems with J=0 and J=1 are dynamically investigated within the framework of two constituent quark models：the chiral quark model and the quark delocalization color screening model. The results show that,there is no pΛbound state in both two models. However,the pΛ elastic scattering processes with coupling to pΣstate are studied and a IJ= 12 0 pΣresonance state is given in the quark delocalization color screening model.
出处
《南京师大学报（自然科学版）》
CAS
CSCD
北大核心
2014年第4期66-70,共5页
Journal of Nanjing Normal University(Natural Science Edition)
基金
国家自然科学基金(11205091)
关键词
pΛ体系
pΣ共振态
束缚态
散射相移
pΛ systems
pΣresonance
bound state
scattering phase shifts
