Sterile Neutrinos as the Origin of Dark and Baryonic Matter

被引：172

作者：

Canetti, Laurent ^{[1
]}

Drewes, Marco ^{[2
,3
]}

Shaposhnikov, Mikhail ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland

[2] Tech Univ Munich, Phys Dept T70, D-85748 Garching, Germany

[3] Rhein Westfal TH Aachen, Inst Theoret Teilchenphys & Kosmol, D-52056 Aachen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 06期

基金：

瑞士国家科学基金会;

关键词：

MASSIVE NEUTRINOS; NU-MSM; SEARCH; SYMMETRY; LEPTOGENESIS; CONSTRAINTS; LEPTONS; MASSES; VMSM;

D O I：

10.1103/PhysRevLett.110.061801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate for the first time that three sterile neutrinos alone can simultaneously explain neutrino oscillations, the observed dark matter, and the baryon asymmetry of the Universe without new physics above the Fermi scale. The key new point of our analysis is leptogenesis after sphaleron freeze-out, which leads to resonant dark matter production, evading thus the constraints on sterile neutrino dark matter from structure formation and x-ray searches. We identify the range of sterile neutrino properties that is consistent with all known constraints. We find a domain of parameters where the new particles can be found with present day experimental techniques, using upgrades to existing experimental facilities. DOI: 10.1103/PhysRevLett.110.061801

引用

页数：6

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