The Search for WIMP Dark Matter

The Search for WIMP Dark Matter
Reina Maruyama, Yale
Photo of Reina Maruyama
Date and time: Fri, Sep 22, 2017 - 2:15pm
Location: LGRT 419B
Category: ACFI Seminar
Abstract:

Astrophysical observations give overwhelming evidence for the existence of dark matter.  And yet we do not know what it is. Two candidates, axions and WIMPs, are the subjects of current active research. Direct detection dark matter experiments designed to detect WIMPs have made enormous progress in the past 30 years, however no clear signal has been observed. In this context, the DAMA collaboration has asserted for over 15 years that they observe a dark matter-induced annual modulation signal. Their observation has yet to be confirmed.  I will describe the current efforts in testing DAMA’s claim for detection, in particular, I will present COSINE-100.  COSINE-100, a joint experiment between the DM-Ice and KIMS collaboration, is a 100-kg scale experiment capable of testing DAMA, currently in operation at the Yangyang Underground Laboratory in South Korea. DM-Ice is a low-background NaI(Tl)-based dark matter experiment. DM-Ice17, a prototype experiment consisting of 17kg of NaI(Tl) detectors, has been continuously operating at the South Pole since 2011.  The status of the field, including results from DM-Ice17 and what we can expect from COSINE-100 and DM-Ice will be presented.