The C-4 Dark Matter Experiment

TL;DR

The C-4 experiment expands the CoGeNT dark matter search with four larger detectors at Soudan, aiming to improve sensitivity to low-mass dark matter through reduced backgrounds and lower energy thresholds.

Contribution

It introduces a new detector array design for dark matter detection, enhancing sensitivity and background reduction compared to previous setups.

Findings

Expected background reduction improves detection sensitivity.

Larger detectors lower energy thresholds for better low-mass dark matter detection.

Projected increased sensitivity to low-mass dark matter candidates.

Abstract

We describe the experimental design of C-4, an expansion of the CoGeNT dark matter search to four identical detectors each approximately three times the mass of the p-type point contact germanium diode presently taking data at the Soudan Underground Laboratory. Expected reductions of radioactive backgrounds and energy threshold are discussed, including an estimate of the additional sensitivity to low-mass dark matter candidates to be obtained with this search.