Dark matter signals and cosmic ray anomalies in an extended seesaw model

被引：0

作者：

Cheon, H. Sung ^{[1
,2
]}

Kang, Sin Kyu ^{[3
]}

Kim, C. S. ^{[1
,2
]}

机构：

[1] Yonsei Univ, Dept Phys, Seoul 120749, South Korea

[2] Yonsei Univ, IPAP, Seoul 120749, South Korea

[3] Seoul Natl Univ Technol, Sch Liberal Arts, Seoul 121742, South Korea

来源：

PHYSICS LETTERS B | 2011年 / 695卷 / 1-4期

关键词：

Extended seesaw model; Leptogenesis; Dark matter; Cosmic ray anomalies; ENERGIES;

D O I：

10.1016/j.physletb.2010.11.028

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An extended seesaw model proposed to achieve low scale leptogenesis can resolve the excess positron and electron fluxes observed from PAMELA, ATIC and/or Fermi-LAT, and simultaneously accommodate some of recent experimental results for dark matter (DM) signals. In this approach, in addition to SU(2)(L) doublet and the (light) singlet Higgs fields, an extra vector-like singlet neutrino and a singlet scalar field, which are coexisting two-particle dark matter candidates, are responsible for the origin of the excess positron and electron fluxes to resolve the PAMELA, ATIC and/or Fermi-LAT anomalies, as well as for the DM signals observed from direct searches in low mass scale. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：242 / 246

页数：5

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