Direct detections of Majorana dark matter in vector portal
Direct detections of Majorana dark matter in vector portal
复制标题
在矢量门户中直接检测马约拉纳暗物质
DOI:
10.1007/jhep11(2019)013
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发表时间:
2019-04
影响因子:
5.4
通讯作者:
Chao Wei
中科院分区:
文献类型:
--
作者:
Chao Wei
In this paper we investigate the direct detections of Majorana dark matter (MDM) in vector portal. Considering that the tree-level scattering cross sections in these models are either dark matter velocity suppressed or spin-dependent, we calculate radiative corrections to the spin-independent cross section in effective field theory approach. Wilson coefficients of effective MDM-quark interactions are calculated at the one-loop level, and the Wilson coefficient of the effective MDM-gluon interaction is derived at the two-loop level. Numerical results show that current constraints can rule out a narrow mass range of MDM when tree-level contributions are considered, and the spin-independent cross section from radiative corrections is a few orders of magnitude smaller than the tree-level contributions.
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影响因子:
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作者:
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通讯作者:
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Comput. Phys. Commun.
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发表时间:
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期刊:
Europhysics Letters
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