Scalar bilepton dark matter

被引：48
作者：
Pires, C. A. de S. [1 ]
Rodrigues da Silva, P. S. [1 ]
机构：
[1] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2007年 / 12期
关键词：
dark matter; cosmology of theories beyond the SM;
D O I：
10.1088/1475-7516/2007/12/012
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this work we show that 3-3-1 model with right-handed neutrinos has a natural weakly interacting massive particle (WIMP) dark matter candidate. It is a complex scalar with mass of order of some hundreds of GeV which carries two units of lepton number, a scalar bilepton. This makes it a very peculiar WIMP, very distinct from supersymmetric or extra-dimension candidates. Besides, although we have to make some reasonable assumptions concerning the several parameters in the model, no. ne tuning is required in order to get the correct dark matter abundance. We also analyze the prospects for WIMP direct detection by considering recent and projected sensitivities for WIMP-nucleon elastic cross section from CDMS and XENON collaborations.
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页数：21
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