Common framework for dark matter, leptogenesis, and neutrino masses

被引：28

作者：

Josse-Michaux, Francois-Xavier ^{[1
]}

Molinaro, Emiliano ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Inst Super Tecn, Ctr Fis Teor Particulas CFTP, P-1049001 Lisbon, Portugal

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 12期

关键词：

BARYON-NUMBER NONCONSERVATION; ASTROPHYSICAL CONSTRAINTS; LEPTON NUMBER; SEESAW MECHANISM; MODEL; SCALE; OSCILLATIONS; BARYOGENESIS; CANDIDATES; MAJORONS;

D O I：

10.1103/PhysRevD.84.125021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study a seesaw-type extension of the standard model in which the symmetry group is enlarged by a global U(1). We introduce adequate scalar and fermion representations which naturally explain the smallness of neutrino masses. With the addition of a viable scalar dark matter candidate, an original scenario of leptogenesis emerges. We solve the relevant set of Boltzmann equations and show how leptogenesis can be successfully implemented at the TeV scale. The constraints on the scalar mass spectrum are derived and the dark matter phenomenology is discussed.

引用

页数：22

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