COUPP - a search for dark matter with a continuously sensitive bubble chamber

Collar, Juan, ; Crum, Keith ; Mishra, Smriti ; Nakazawa, Dante ; Odom, Brian ; Rasmussen, Julia ; Riley, Nathan ; Szydagis, Matthew ; U., /Chicago ; Behnke, Ed ; Levine, Ilan ; Vander Werf, Nate ; /Indiana U., South Bend ; Cooper, Peter ; Crisler, Mike ; Hu, Martin ; Ramberg, Erik ; Sonnenschein, Andrew ; Tschirhart, Robert ; /Fermilab

Fermi National Accelerator Laboratory

关键词: Sensitivity Accelerators;    Nonluminous Matter;    Electrons;    Radionuclide Kinetics;    43 Particle Accelerators;   

DOI  :  10.2172/898400
RP-ID  :  FERMILAB-PROPOSAL-0961
RP-ID  :  AC02-07CH11359
RP-ID  :  898400

美国|英语

来源: UNT Digital Library

【 摘 要 】

We propose to construct and operate a 60-kg room temperature CF{sub 3}I bubble chamber as a prototype dark matter (WIMP) detector. Operating in weakly-superheated mode, the chamber will be sensitive to WIMP induced nuclear recoils above 10 keV, while rejecting background electron recoils at a level approaching 10{sup 10}. We would first commission and operate this chamber in the MINOS near detector hall with the goal to demonstrate stable operation and measure internal contamination and any other backgrounds. This chamber, or an improved version, would then be relocated to an appropriate deep underground site such as the Soudan Mine. This detector will have unique sensitivity to spin-dependent WIMP-nucleon couplings, and even in this early stage of development will attain competitive sensitivity to spin-independent couplings.