Beyond the CDMS-II Dark Matter Search: SuperCDMS

TL;DR

SuperCDMS aims to extend dark matter WIMP detection sensitivity beyond current limits by utilizing a deep underground site like SNOLab, with a detailed plan and phased development approach.

Contribution

This paper proposes the SuperCDMS project, outlining its plan, challenges, and goals to improve WIMP detection sensitivity at a deeper underground site.

Findings

SuperCDMS plans to reach WIMP-nucleon cross sections of 10^{-46} to 10^{-44} cm^2.

Identification of primary issues for SuperCDMS development.

Strategic plan for phased implementation at SNOLab.

Abstract

Presently the CDMS-II collaboration's Weakly Interacting Massive Particle (WIMP) search at the Soudan Underground Laboratory sets the most stringent exclusion limits of any WIMP cold dark matter direct-detection experiment. To extend our reach further, to WIMP-nucleon cross sections in the range $10^{-46} - 10^{-44}$cm$^2$, we propose SuperCDMS, which would take advantage of a very deep site. One promising site is the recently approved SNOLab facility in Canada. In this paper we will present our overall plan, identify primary issues, and set the goals that need to be met prior to embarking upon each phase of SuperCDMS.