Novel Direct Detection Constraints on Light Dark Matter

被引：217

作者：

Bringmann, Torsten ^{[1
]}

Pospelov, Maxim ^{[2
,3
]}

机构：

[1] Univ Oslo, Dept Phys, Box 1048, N-0371 Oslo, Norway

[2] Perimeter Inst Theoret Phys, Waterloo, ON N2J 2W9, Canada

[3] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 122卷 / 17期

关键词：

CANDIDATES;

D O I：

10.1103/PhysRevLett.122.171801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

All attempts to directly detect particle dark matter (DM) scattering on nuclei suffer from the partial or total loss of sensitivity for DM masses in the GeV range or below. We derive novel constraints from the inevitable existence of a subdominant, but highly energetic, component of DM generated through collisions with cosmic rays. Subsequent scattering inside conventional DM detectors, as well as neutrino detectors sensitive to nuclear recoils, limits the DM-nucleon scattering cross section to be below 10(-31) cm(2) for both spin-independent and spin-dependent scattering of light DM.

引用

页数：6

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