Dark matter: The leptonic connection

被引：78

作者：

Cao, Qing-Hong ^{[2
,3
]}

Ma, Ernest ^{[4
]}

Shaughnessy, Gabe ^{[1
,2
]}

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[2] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA

[3] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60439 USA

[4] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92531 USA

来源：

PHYSICS LETTERS B | 2009年 / 673卷 / 02期

关键词：

NEUTRINO MASS;

D O I：

10.1016/j.physletb.2009.02.015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent observations of high-energy positrons and electrons by the PAMELA and ATIC experiments may be an indication of the annihilation of (lark matter into leptons and not quarks. This leptonic connection was foreseen already some years ago in two different models of radiative neutrino mass. We discuss here the generic interactions (nu eta(0) - l eta(+))chi and l(c) zeta(-) chi(c) which allow this to happen, where chi and/or chi(c) are fermionic dark-matter candidates. We point out in particular the importance of chi chi -> l(+) l(-) gamma to both positron and gamma-ray signals within this framework. (C) 2009 Published by Elsevier B.V.

引用

页码：152 / 155

页数：4

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