Baryogenesis from a dark first-order phase transition

被引：57

作者：

Hall, Eleanor ^{[1
,2
]}

Konstandin, Thomas ^{[3
]}

McGehee, Robert ^{[1
,2
]}

Murayama, Hitoshi ^{[1
,2
,3
,4
]}

Servant, Geraldine ^{[3
,5
]}

机构：

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

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

[3] DESY, Notkestr 85, D-22607 Hamburg, Germany

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

[5] Univ Hamburg, Inst Theoret Phys, D-22761 Hamburg, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 2020卷 / 04期

关键词：

Beyond Standard Model; Cosmology of Theories beyond the SM; ELECTROWEAK; MODEL; NUMBER; BARYON;

D O I：

10.1007/JHEP04(2020)042

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We present a very minimal model for baryogenesis by a dark first-order phase transition. It employs a new dark SU(2)(D) gauge group with two doublet Higgs bosons, two lepton doublets, and two singlets. The singlets act as a neutrino portal that transfer the generated asymmetry to the Standard Model. The model predicts increment N-eff = 0.09-0.13 detectable by future experiments as well as possible signals from exotic decays of the Higgs and Z bosons and stochastic gravitational waves.

引用

页数：15

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