Log triviality in the Nambu-Jona-Lasinio model

被引：0
|
作者：
Hands, S [1 ]
机构：
[1] Univ Wales Swansea, Dept Phys, Swansea SA2 8PP, W Glam, Wales
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1998年 / 63卷
关键词：
D O I：
10.1016/S0920-5632(97)00868-2
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Results are presented from a Monte Carlo simulation of the Nambu - Jona-Lasinio model with SU(2)xSU(2) chiral symmetry and N-f = 2 flavors of fermion. We show that fits to the equation of state are sensitive to the shape and extent of the assumed scaling region; the best fits favour a triviality scenario predicted by the large-N-j approximation, in which the scalar degrees of freedom are fermion - anti-fermion composites with wavefunction renormalisation constant vanishing logarithmically in the continuum limit.
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页码：673 / 675
页数：3
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