Response characteristic of a xenon detector searching for the WIMP as a SUSY dark matter and a possible WIMP detection region on the primary–secondary plot for a xenon detector

Abstract

Research and developments of a xenon weakly interactive massive particle (WIMP) searching detector have been done for a couple of decades. The weakness of signal amplitudes gives some difficulties to increase the detection efficiency. We brief a possible primary signal amplification method with an internal photo cathode and the secondary amplification method with electroluminescence technique. Using those methods, we achieved 1.8 × 10 2 ± 40 times amplification ratio for a primary scintillation and 4.3 × 10 ± 5 times amplification ratio for a secondary one. It will maximize the efficiency of a xenon detector to search for the super-symmetric dark matter, WIMP. Also we describe the response characteristics of a xenon detector that is exposed by cosmic ray on the ground level. We describe the possible detection region for a WIMP signal in the primary–secondary plot. We will show a possible WIMP signal detected by xenon detector. Here we also remind the detailed working mechanism of a xenon detector searching for the WIMP dark matter.