Neutrino-dark matter connections in gauge theories

被引：49

作者：

Perez, Pavel Fileviez ^{[1
,2
]}

Murgui, Clara ^{[3
]}

Plascencia, Alexis D. ^{[1
,2
]}

机构：

[1] Case Western Reserve Univ, Phys Dept, Rockefeller Bldg,2076 Adelbert Rd, Cleveland, OH 44106 USA

[2] Case Western Reserve Univ, CERCA, Rockefeller Bldg,2076 Adelbert Rd, Cleveland, OH 44106 USA

[3] Univ Valencia, CSIC, IFIC, Dept Fis Teor, E-46071 Valencia, Spain

来源：

PHYSICAL REVIEW D | 2019年 / 100卷 / 03期

关键词：

MASS; LHC;

D O I：

10.1103/PhysRevD.100.035041

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the connection between the origin of neutrino masses and the properties of dark matter candidates in the context of gauge extensions of the Standard Model. We investigate minimal gauge theories for neutrino masses where the neutrinos arc predicted to be Dirac or Majorana fermions. We find that the upper bound on the effective number of relativistic species provides a strong constraint in the scenarios with Dirac neutrinos. In the context of theories where the lepton number is a local gauge symmetry spontaneously broken at the low scale, the existence of dark matter is predicted from the condition of anomaly cancellation. Applying the cosmological bound on the dark matter relic density, we find an upper bound on the symmetry breaking scale in the multi-TeV region. These results imply that we could test simple gauge theories for neutrino masses at current or future experiments.

引用

页数：14