Leptogenesis from spontaneous symmetry breaking during inflation

被引：0
|
作者：
Yi-Peng Wu
Louis Yang
Alexander Kusenko
机构：
[1] The University of Tokyo,Research Center for the Early Universe (RESCEU), Graduate School of Science
[2] The University of Tokyo,Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU), WPI, UTIAS
[3] University of California,Department of Physics and Astronomy
来源：
Journal of High Energy Physics | / 2019卷
关键词：
Cosmology of Theories beyond the SM; Spontaneous Symmetry Breaking; CP violation; Higgs Physics;
D O I：
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学科分类号：
摘要：
Symmetry breaking in the Higgs field via a non-minimal coupling to gravity or higher-dimensional interactions with the inflaton can lead to condensation at a large vacuum expectation value (VEV) during inflation. After inflation is over, the Higgs field must relax to the minimum of its effective potential, creating an era in which the CPT is effectively broken by the time-depended VEV. We show that the matter-antimatter asymmetry can be generated during this relaxation epoch.
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