Constraining the interaction strength between dark matter and visible matter: II. Scalar, vector and spin-3/2 dark matter
Constraining the interaction strength between dark matter and visible matter: II. Scalar, vector and spin-3/2 dark matter
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DOI：
10.1016/j.nuclphysb.2012.02.016
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发表时间：
2011-12
期刊：
影响因子：
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通讯作者：
Zhaolong Yu;Jiaming Zheng;X. Bi;Zhibing Li;D. Yao;Hong-Hao Zhang
中科院分区：
文献类型：
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作者：
Zhaolong Yu;Jiaming Zheng;X. Bi;Zhibing Li;D. Yao;Hong-Hao Zhang
通过对暗物质遗迹密度的观测、CDMS和XENON的直接探测实验以及PAMELA对p <$p比的间接探测，研究了标量、矢量和自旋3/2暗物质与标准模型粒子相互作用的约束条件.采用模型无关的方法，构造了6维的一般4粒子算符，实现了暗物质与标准模型粒子的有效相互作用。我们发现，从不同的实验的约束是互补的。这些约束之间的比较可能会排除一些有效的暗物质模型，并限制其他的一些参数。与自旋无关的直接探测对某些算子有很强的约束，而在某些情况下，p <$/p数据的间接探测可能比直接探测或轻暗物质（质量约为70 GeV）的遗迹密度更灵敏。自旋3/2暗物质的一些运营商的约束是类似的狄拉克费米子暗物质的类似运营商。目前的暗物质直接和间接搜索实验中仍有一些算子不敏感。
We investigate the constraints on the scalar, vector and spin-3/2 dark matter interaction with the standard model particles, from the observations of dark matter relic density, the direct detection experiments of CDMS and XENON, and the indirect detection of the p¯/p ratio by PAMELA. A model independent way is adopted by constructing general 4-particle operators up to dimension 6 for the effective interaction between dark matter and standard model particles. We find that the constraints from different experiments are complementary with each other. Comparison among these constraints may exclude some effective models of dark matter and limit some parameters of others. The spin-independent direct detection gives strong constraints for some operators, while the indirect detection of p¯/p data can be more sensitive than direct detection or relic density for light dark matter (whose mass ≲70 GeV) in some cases. The constraints on some operators for spin-3/2 dark matter are shown to be similar to those on their analogous operators for Dirac fermionic dark matter. There are still some operators not sensitive to the current dark matter direct and indirect search experiments.