Lightness of a Higgs boson and spontaneous CP-violation in the Lee model: An alternative scenario

doi:10.1103/PhysRevD.94.055008

	Lightness of a Higgs boson and spontaneous CP-violation in the Lee model: An alternative scenario
	Mao YN(毛英男); Mao, YN; Zhu, SH
刊名	PHYSICAL REVIEW D
	2016
卷号	94 期号:5
DOI	10.1103/PhysRevD.94.055008
英文摘要	Based on the weakly coupled spontaneous CP-violation two-Higgs-doublet model (called the Lee model) and the mechanism to generate the correlation between the smallness of CP violation and the lightness of the scalar mass, as we proposed earlier, we predict a light CP mixing scalar eta in which the pseudoscalar component is dominant. It is a natural scenario in which m(eta) similar to O(10 GeV) << v. It means new physics might be hidden below the electroweak scale v. Masses of all other scalars (h, H, H-+/-) should be around the electroweak scale v. Among them, the 125 GeV Higgs boson (h) couplings are standard-modellike, and the charged Higgs boson (H-+/-) mass should be around the heaviest neutral scalar (H) mass. We discussed all experimental constraints and showed that this scenario is still allowed by data. The strictest constraints come from the flavor violation experiments and the electric dipole moments of the electron and neutron. We also discussed the future tests for this scenario. It is possible to discover the extra scalars or exclude this scenario at future colliders, especially at the LHC and e(+)e(-) colliders with O(ab(-1)) luminosity. We also pointed out that the Z-mediated Higgs pair production via e(+)e(-) -> h(i)h(j) (h(i), h(j) stand for two of the., h, H) would be the key observable to confirm or exclude CP violation in the Higgs sector. The sensitivity to test this scenario is worth studying in greater detail.
语种	英语
WOS记录号	WOS:000383240900005
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260664]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Mao YN,Mao, YN,Zhu, SH. Lightness of a Higgs boson and spontaneous CP-violation in the Lee model: An alternative scenario[J]. PHYSICAL REVIEW D,2016,94(5).
APA	毛英男,Mao, YN,&Zhu, SH.(2016).Lightness of a Higgs boson and spontaneous CP-violation in the Lee model: An alternative scenario.PHYSICAL REVIEW D,94(5).
MLA	毛英男,et al."Lightness of a Higgs boson and spontaneous CP-violation in the Lee model: An alternative scenario".PHYSICAL REVIEW D 94.5(2016).