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题名: Higgs inflation in Gauss-Bonnet braneworld
作者: Cai, RG;  Guo, ZK;  Wang, SJ
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 92, 期号:6, 页码:63514
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.92.063514
通讯作者: Cai, RG (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: The measured masses of the Higgs boson and top quark indicate that the effective potential of the standard model either develops an unstable electroweak vacuum or stands stable all the way up to the Planck scale. In the latter case in which the top quark mass is about 2 sigma below its present central value, the Higgs boson can be the inflaton with the help of a large nonminimal coupling to curvature in four dimensions. We propose a scenario in which the Higgs boson can be the inflaton in a five-dimensional Gauss-Bonnet braneworld model to solve both the unitarity and stability problems which usually plague Higgs inflation. We find that in order for Higgs inflation to happen successfully in the Gauss-Bonnet regime, the extra dimension scale must appear roughly in the range between the TeV scale and the instability scale of standard model. At the tree level, our model can give rise to a naturally small nonminimal coupling xi similar to O(1) for the Higgs quartic coupling gamma similar to O(0.1) if the extra dimension scale lies at the TeV scale. At the loop level, the inflationary predictions at the tree level are preserved. Our model can be confronted with future experiments and observations from both particle physics and cosmology.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: STANDARD MODEL ;  BOSON MASS ;  GRAVITY ;  SEESAW ;  DIMENSIONS ;  MILLIMETER ;  HIERARCHY
收录类别: SCI
项目资助者: Strategic Priority Research Program of the Chinese Academy of Sciences [XDB09000000] ;  National Natural Science Foundation of China [11175225, 11335012]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20862
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Recommended Citation:
Cai, RG,Guo, ZK,Wang, SJ. Higgs inflation in Gauss-Bonnet braneworld[J]. PHYSICAL REVIEW D,2015,92(6):63514.
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