BOUNDS ON THE RENORMALIZED COUPLINGS IN AN SU(2)L CIRCLE-TIMES SU(2)R SYMMETRICAL YUKAWA MODEL

被引：17
作者：
LIN, L
MONTVAY, I
MUNSTER, G
PLAGGE, M
WITTIG, H
机构：
[1] DESY, W-2000 HAMBURG 52, GERMANY
[2] UNIV SOUTHAMPTON, DEPT THEORET PHYS, SOUTHAMPTON SO9 5NH, HANTS, ENGLAND
来源：
PHYSICS LETTERS B | 1993年 / 317卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(93)91584-A
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The vacuum stability lower bound on the mass of the Higgs boson is numerically investigated in an SU(2)L x SU(2)R symmetric Yukawa model, which describes two heavy degenerate fermion doublets in the limit of vanishing gauge couplings. The values for the lower bound are in good agreement with those obtained from an integration of the one-loop beta-functions, although the couplings are strong. The upper bound on the fermion mass and renormalized Yukawa coupling is also determined in the part of bare parameter space where reflection positivity has been proven.
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收藏
页码：143 / 150
页数：8
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