Towards working technicolor: Effective theories and dark matter

被引:171
作者
Gudnason, Sven Bjarke [1 ]
Kouvaris, Chris [1 ]
Sannino, Francesco [1 ]
机构
[1] Niels Bohr Inst, DK-2100 Copenhagen 0, Denmark
来源
PHYSICAL REVIEW D | 2006年 / 73卷 / 11期
关键词
D O I
10.1103/PhysRevD.73.115003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A fifth force, of technicolor type, responsible for breaking the electroweak theory is an intriguing extension of the standard model. Recently new theories have been shown to feature walking dynamics for a very low number of techniflavors and are not ruled out by electroweak precision measurements. We identify the light degrees of freedom and construct the associated low energy effective theories. These can be used to study signatures and relevant processes in current and future experiments. In our theory the technibaryons are pseudo Goldstone bosons and their masses arise via extended technicolor interactions. There are hypercharge assignments for the techniquarks which renders one of the technibaryons electrically neutral. We investigate the cosmological implications of this scenario and provide a component of dark matter.
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页数:7
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