Higgs inflation in Gauss-Bonnet braneworld

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	Higgs inflation in Gauss-Bonnet braneworld
	Cai, RG; Guo, ZK; Wang, SJ
刊名	PHYSICAL REVIEW D
	2015
卷号	92 期号:6 页码:63514
通讯作者	Cai, RG (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.
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.
学科主题	Astronomy & Astrophysics ; Physics
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
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20862]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Cai, RG,Guo, ZK,Wang, SJ. Higgs inflation in Gauss-Bonnet braneworld[J]. PHYSICAL REVIEW D,2015,92(6):63514.
APA	Cai, RG,Guo, ZK,&Wang, SJ.(2015).Higgs inflation in Gauss-Bonnet braneworld.PHYSICAL REVIEW D,92(6),63514.
MLA	Cai, RG,et al."Higgs inflation in Gauss-Bonnet braneworld".PHYSICAL REVIEW D 92.6(2015):63514.