THE ELECTROWEAK PHASE-TRANSITION WITH A SINGLET

被引：114
作者：
ESPINOSA, JR
QUIROS, M
机构：
[1] Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Serrano
来源：
PHYSICS LETTERS B | 1993年 / 305卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(93)91111-Y
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the electroweak phase transition in the minimal extension of the Standard Model: an extra complex singlet with zero vacuum expectation value. The first-order phase transition is strengthened by the cubic term triggered in the one-loop effective potential by the extra boson. Plasma effects are considered to leading order: they shield the cubic terms and weaken the first-order phase transition. We find a region in the parameter space where baryon asymmetry washout is avoided for Higgs masses consistent with present experimental bounds. However in that region the theory becomes non-perturbative for scales higher than 10(10) GeV.
引用
收藏
页码：98 / 105
页数：8
相关论文
共 51 条
[11]  
BRAHM DE, CALT681705
[12]  
BRAHM DE, HUTP91A064
[13]  
BRAHM DE, HUTP91A063
[14]  
BRAHM DE, CALTECH CALT681762 P
[15]  
BUCHMULLER W, DESY92151 PREPR
[16]   EFFECTIVE POTENTIAL AT FINITE TEMPERATURE IN THE STANDARD MODEL [J].
CARRINGTON, ME .
PHYSICAL REVIEW D, 1992, 45 (08) :2933-2944
[17]   HIGGS PHENOMENA IN ASYMPTOTICALLY FREE GAUGE THEORIES [J].
CHENG, TP ;
EICHTEN, E ;
LI, LF .
PHYSICAL REVIEW D, 1974, 9 (08) :2259-2273
[18]   TOWARDS THE THEORY OF THE ELECTROWEAK PHASE-TRANSITION [J].
DINE, M ;
LEIGH, RG ;
HUET, P ;
LINDE, A ;
LINDE, D .
PHYSICAL REVIEW D, 1992, 46 (02) :550-571
[19]   COMMENTS ON THE ELECTROWEAK PHASE-TRANSITION [J].
DINE, M ;
LEIGH, RG ;
HUET, P ;
LINDE, A ;
LINDE, D .
PHYSICS LETTERS B, 1992, 283 (3-4) :319-325
[20]   CREATING THE BARYON ASYMMETRY AT THE ELECTROWEAK PHASE-TRANSITION [J].
DINE, M ;
HUET, P ;
SINGLETON, R ;
SUSSKIND, L .
PHYSICS LETTERS B, 1991, 257 (3-4) :351-356
123456