Low-Lying Baryons in Hybrid Quark Model

被引：0
|
作者：
Khosonthongkee, Khanchai [1 ,2 ]
Yan, Yupeng [1 ,2 ]
机构：
[1] Suranaree Univ Technol, Inst Sci, Sch Phys, Nakhon Ratchasima 30000, Thailand
[2] Commiss Higher Educ, Thailand Ctr Excellence Phys ThEP, Bangkok 10400, Thailand
来源：
FEW-BODY SYSTEMS | 2014年 / 55卷 / 8-10期
关键词：
3; MESONS; N-ASTERISK(1440); ANNIHILATION;
D O I：
10.1007/s00601-014-0866-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the strong decay processes of the Roper resonance, N*(1440) in the picture of hybrid baryon in which the Roper resonance N*(1440) is interpreted as a state of three quarks and one transverse-electric gluon, q (3) G. A nonrelativistic quark-gluon model is employed, where the dynamics of antiquark-quark-gluon is described in the effective vertex in which a quark-antiquark pair is created (destroyed) from (into) a gluon. The wave function of the Roper resonance is properly constructed to take into account the gluon freedom in the nonrelativistic regime. The evaluated strong decay width ratios of N*(1440) are in good agreement with the experimental data.
引用
收藏
页码：1037 / 1039
页数：3
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