Electroweak baryogenesis and quantum corrections to the triple Higgs boson coupling

被引:139
作者
Kanemura, S [1 ]
Okada, Y
Senaha, E
机构
[1] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan
[2] KEK, Theory Grp, Tsukuba, Ibaraki 3050801, Japan
[3] Grad Univ Adv Studies Sokendai, Dept Particle & Nucl Phys, Tsukuba, Ibaraki 3050801, Japan
关键词
D O I
10.1016/j.physletb.2004.12.004
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A phenomenological consequence of electroweak baryogenesis is studied in connection with the Higgs physics. In a two Higgs doublet model, the first-order phase transition can be strong enough to allow the electroweak baryogenesis due to the effect of extra Higgs bosons. We investigate the quantum correction to the triple coupling of the lightest Higgs boson in such a scenario, and find that the condition of the strong first-order phase transition necessarily leads to the deviation of at least 10% from the Standard Model prediction. Such magnitude of the deviation can be identified in future e(+)e(-) linear collider experiments. We also discuss the minimal supersymrnetric standard model with the light stop scenario, and point out that a sizable correction appears in the triple coupling for successful electroweak baryogenesis. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:361 / 366
页数:6
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