Affleck-Dine Leptogenesis from Higgs Inflation

被引：28

作者：

Barrie, Neil D. ^{[1
]}

Han, Chengcheng ^{[2
]}

Murayama, Hitoshi ^{[3
,4
,5
]}

机构：

[1] Inst Basic Sci IBS, Ctr Theoret Phys Universe, Daejeon 34126, South Korea

[2] Sun Yat Sen Univ, Sch Phys, Guangzhou 510275, Guangdong, Peoples R China

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[4] Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan

[5] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 128卷 / 14期

关键词：

CHAOTIC INFLATION; NEUTRINO MASSES; TRIPLET SEESAW; BARYOGENESIS; UNIVERSE; SCALARON; FLATNESS; GRAVITY; HORIZON; SEARCH;

D O I：

10.1103/PhysRevLett.128.141801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We find that the triplet Higgs of the type-II seesaw mechanism can simultaneously generate the neutrino masses and observed baryon asymmetry while playing a role in inflation. We survey the allowed parameter space and determine that this is possible for triplet masses as low as a TeV, with a preference for a small vacuum expectation value for the triplet v(Delta) < 10 keV. This requires that the triplet Higgs must decay dominantly into the leptonic channel. Additionally, this model will be probed at the future 100 TeV collider, upcoming lepton flavor violation experiments such as Mu3e, and neutrinoless double beta decay experiments. Thus, this simple framework provides a unified solution to the three major unknowns of modern physics-inflation, the neutrino masses, and the observed baryon asymmetry-while simultaneously providing unique phenomenological predictions that will be probed terrestrially at upcoming experiments.

引用

页数：7

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