Dark matter from new technicolor theories

被引：203

作者：

Gudnason, Sven Bjarke ^{[1
]}

Kouvaris, Chris ^{[1
]}

Sannino, Francesco ^{[1
]}

机构：

[1] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.74.095008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate dark matter candidates emerging in recently proposed technicolor theories. We determine the relic density of the lightest, neutral, stable technibaryon having imposed weak thermal equilibrium conditions and overall electric neutrality of the Universe. In addition we consider sphaleron processes that violate baryon, lepton and technibaryon number. Our analysis is performed in the case of a first order electroweak phase transition as well as a second order one. We argue that, in both cases, the new technibaryon contributes to the dark matter in the Universe. Finally we examine the problem of the constraints on these types of dark matter components from earth based experiments.

引用

页数：9

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