HYBRID BARYONS VIA QCD SUM-RULES

被引：47
作者：
KISSLINGER, LS
LI, ZP
机构：
[1] Department of Physics, Carnegie Mellon University, Pittsburgh
来源：
PHYSICAL REVIEW D | 1995年 / 51卷 / 11期
关键词：
D O I：
10.1103/PhysRevD.51.R5986
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Hybrid baryons, consisting of the three light quarks and a gluon, are investigated using the QCD sum rule method. We find that the mixed condensate 0 G 0 =m02 0 0 plays a dominant role in hybrid baryons in contrast with the quark condensate in the nucleon case. For the standard value of m02=0.8 GeV2, the mass of the lowest hybrid state is found to be approximately 1.5 GeV, about the observed mass of the Roper resonance. © 1995 The American Physical Society.
引用
收藏
页码：R5986 / R5989
页数：4
相关论文
共 24 条
[1]  
Close F.E., Rep. Prog. Phys., 51, (1988)
[2]  
Barnes T., Close F.E., Phys. Lett., 128 B, (1983)
[3]  
Li, Physical Review D, 44, (1991)
[4]  
Li, Burkert V., Li, Physical Review D, 46, (1992)
[5]  
Carlson C.E., Mukhopadhyay N.C., Physical Review Letters, 67, (1991)
[6]  
Hogaason H., Richard J.M., Phys. Lett., 134 B, (1983)
[7]  
Chanowitz M., Sharp s.R., Nucl. Phys., 222 B, (1983)
[8]  
Close F.E., De Viron F., Nucl. Phys., 224 B, (1983)
[9]  
Close F.E., De Viron F., Nucl. Phys., 158 B, (1979)
[10]  
De Viron F., Weyers J., Nucl. Phys., 185 B, (1981)
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