The ZZ′ kinetic mixing in the light of the recent direct and indirect dark matter searches

被引:67
作者
Mambrini, Yann [1 ]
机构
[1] Univ Paris Sud, Phys Theor Lab, F-91405 Orsay, France
来源
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2011年 / 07期
关键词
dark matter theory; cosmology of theories beyond the SM; dark matter experiments; DENSITY; MODELS;
D O I
10.1088/1475-7516/2011/07/009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Several constructions, of stringy origins or not, generate abelian gauge extensions of the Standard Model (SM). Even if the particles of the SM are not charged under this extra U'(1), one cannot avoid the presence of a kinetic mixing between U'(1) and the hypercharge U-Y(1). In this work, we constraint drastically this kinetic mixing, taking into account the recent experimental data from accelerator physics, direct detection and indirect detection of dark matter. We show that the region respecting WMAP and experimental constraints is now very narrowed along the pole line where M-ZD similar or equal to 2m(DM), Z(D) being the gauge boson associated to the extra U'(1).
引用
收藏
页数:15
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