论文标题
使用超流体氦气观察银河系暗物质的方向性
Use of Superfluid Helium to Observe Directionality of Galactic Dark Matter
论文作者
论文摘要
以前，在低温下，超高流量氦气中高度电离颗粒的轨道从轨道上传播，以前已显示出各向异性。我们讨论了导致这种行为的机制，并表明它是通过暗物质散射到核散射的，以降至几个KEV，甚至更低。这使得可以通过相互作用的横截面扩展WIMP搜索，这些横截面在有意义的能量范围内到达中微子地板。
The quasiparticle propagation away from the track of a highly ionizing particle in superfluid helium at low temperatures has previously been shown to exhibit anisotropy. We discuss the mechanism responsible for this behavior and show that it occurs for nuclear scattering by dark matter for recoil energies down to a few keV, and perhaps lower. This makes it possible to extend WIMP searches with interaction cross sections that reach into the neutrino floor in a meaningful energy range.
