First direct detection constraint on mirror dark matter kinetic mixing using LUX 2013 data

Understand

We present the results of a direct detection search for mirror dark matter interactions, using data collected from the Large Underground Xenon experiment during 2013, with an exposure of 95 live-days $\times$ 118 kg.

• Here, the calculations of the mirror electron scattering rate in liquid xenon take into account the shielding effects from mirror dark matter captured within the Earth.
• Annual and diurnal modulation of the dark matter flux and atomic shell effects in xenon are also accounted for.
• Having found no evidence for an electron recoil signal induced by mirror dark matter interactions we place an upper limit on the kinetic mixing parameter over a range of local mirror electron temperatures between 0.1 and 0.6 keV.