Large-N baryons, chiral loops, and the emergence of the constituent quark

被引：5
|
作者：
Keaton, GL
机构：
[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA
[2] LAWRENCE BERKELEY LAB,THEORET PHYS GRP,BERKELEY,CA 94720
来源：
PHYSICS LETTERS B | 1996年 / 372卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(96)00034-2
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Meson loop corrections to baryon axial currents are computed in the 1/N expansion. It is already known that the one-loop corrections are suppressed by a factor 1/N; here it is shown that the two-loop corrections are suppressed by 1/N-2. To leading order, these corrections are exactly what would be calculated in the constituent quark model. Some applications are discussed.
引用
收藏
页码：150 / 156
页数：7
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