Low Scale Left-Right Symmetry and Warm Dark Matter

被引：2
作者：
Nemevsek, Miha [1 ]
机构：
[1] Abdus Salaam Int Ctr Theoret Phys, I-34151 Trieste, Italy
来源：
WORKSHOP ON DARK MATTER, UNIFICATION AND NEUTRINO PHYSICS (CETUP 2012) | 2013年 / 1534卷
关键词：
left-right symmetry; warm dark matter; see-saw mechanism; DOUBLE-BETA DECAY; NEUTRINO MASS; STERILE NEUTRINOS; PP COLLISIONS; SEARCH; PARITY; VIOLATION; COSMOLOGY; LEPTONS; EVENTS;
D O I：
10.1063/1.4807348
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the scenario which incorporates dark matter in the minimal left-right symmetric theory at the TeV scale. The only viable candidate is found to be the lightest right-handed neutrino with a mass of keV. In order to satisfy the dark matter relic abundance, the relic yield is diluted by late decays of the two heavier neutrinos. We point out that the QCD phase transition temperature coincidences with the typical freeze-out temperature governed by super-weak right-handed interactions. This helps to alleviate the problem of overproduction and a careful numerical study reveals a narrow window for the mass of the right-handed gauge boson, which is within the reach of the LHC.
引用
收藏
页码：112 / 121
页数：10
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