超导探测器用于探测超轻暗物质。
Superconducting Detectors for Superlight Dark Matter.
机构信息
Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA and Berkeley Center for Theoretical Physics, University of California, Berkeley, California 94720, USA.
Department of Physics, Stanford Institute for Theoretical Physics, Stanford University, Stanford, California 94305, USA.
出版信息
Phys Rev Lett. 2016 Jan 8;116(1):011301. doi: 10.1103/PhysRevLett.116.011301. Epub 2016 Jan 7.
We propose and study a new class of superconducting detectors that are sensitive to O(meV) electron recoils from dark matter-electron scattering. Such devices could detect dark matter as light as the warm dark-matter limit, m(X)≳1 keV. We compute the rate of dark-matter scattering off of free electrons in a (superconducting) metal, including the relevant Pauli blocking factors. We demonstrate that classes of dark matter consistent with terrestrial and cosmological or astrophysical constraints could be detected by such detectors with a moderate size exposure.
我们提出并研究了一类新的超导探测器，它们对暗物质-电子散射产生的 O(meV)电子反冲敏感。这种设备可以探测到轻至暖暗物质极限的暗物质，m(X)≳1keV。我们计算了超导金属中自由电子与暗物质散射的速率，包括相关的泡利阻塞因子。我们证明，在适度的尺寸暴露下，与地面和宇宙学或天体物理约束一致的暗物质类别可以被这种探测器探测到。
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