Dimensional reduction of the Standard Model coupled to a new singlet scalar field

被引：50

作者：

Brauner, Tomas ^{[1
]}

Tenkanen, Tuomas V. I. ^{[2
,3
]}

Tranberg, Anders ^{[1
]}

Vuorinen, Aleksi ^{[2
,3
]}

Weir, David J. ^{[1
,2
,3
]}

机构：

[1] Univ Stavanger, Fac Sci & Technol, N-4036 Stavanger, Norway

[2] Univ Helsinki, Dept Phys, POB 64, FI-00014 Helsinki, Finland

[3] Univ Helsinki, Helsinki Inst Phys, POB 64, FI-00014 Helsinki, Finland

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2017年 / 03期

基金：

芬兰科学院;

关键词：

Beyond Standard Model; Effective field theories; Thermal Field Theory; ELECTROWEAK PHASE-TRANSITION; BARYON-NUMBER NONCONSERVATION; HIGGS-BOSON COUPLINGS; CP-VIOLATION; BARYOGENESIS; ASYMMETRY; UNIVERSE;

D O I：

10.1007/JHEP03(2017)007

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：

We derive an effective dimensionally reduced theory for the Standard Model augmented by a real singlet scalar. We treat the singlet as a superheavy field and integrate it out, leaving an effective theory involving only the Higgs and SU(2)(L) x U(1)(y) gauge fields, identical to the one studied previously for the Standard Model. This opens up the possibility of efficiently computing the order and strength of the electroweak phase transition, numerically and nonperturbatively, in this extension of the Standard Model. Understanding the phase diagram is crucial for models of electroweak baryogenesis and for studying the production of gravitational waves at thermal phase transitions.

引用

页数：53

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