BINDING-ENERGIES IN WEAKLY COUPLED (2+1)-DIMENSIONAL QUANTUM-FIELD THEORIES

被引：0
|
作者：
GAT, G
ROSENSTEIN, B
机构：
来源：
MODERN PHYSICS LETTERS A | 1991年 / 6卷 / 29期
关键词：
D O I：
10.1142/S021773239100316X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We calculate the binding energy of the two-particle threshold bound state in the (2 + 1)-dimensional Gross-Neveu model. This model was recently shown to be renormalizable within the 1/N expansion. The binding energy is found to be DELTA-E = 4me-8nf where m is the mass of the elementary fermion and N(f) is the number of flavors. The general question of consistency of the perturbation theory within the framework of the Bethe-Salpeter equation is discussed.
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页码：2705 / 2711
页数：7
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