The DAMIC Dark Matter Experiment
ORAL
Abstract
The DAMIC (Dark Matter in CCDs) experiment uses thick scientific grade silicon charge-coupled devices (CCDs) to detect potential ionization signals from dark matter interactions. These devices feature an impressively low leakage current ($<10^{-21}$ A cm$^2$) and a very low energy threshold (40 eV$_{\rm{ee}}$), making them ideal low-mass dark matter detectors. In addition, their unique spatial resolution provides for effective identification and mitigation of environmental backgrounds. In this talk I will summarize recent dark matter constraints from the experiment at SNOLAB, discuss the kg-size next generation DAMIC-M detector funded for operation, and show results from "Skipper” instrumented CCDs – a novel readout technique that allows for counting of individual charges, with a demonstrated resolution of 0.07 e$^-$, which ushers in a new era of sensitivity to low-energy interactions.
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Authors
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Karthik Ramanathan
University of Chicago