Particle Physics Seminar

"DM-Ice17 and COSINE-100 NaI(Tl) Dark Mater Experiment: Testing DAMA's Claim for a Dark Matter Discovery"

Presented by Jay Hyun Jo, Yale University

Thursday, January 3, 2019, 3:00 pm — Small Seminar Room, Bldg. 510

Astrophysical observations give overwhelming evidence for the existence of dark matter, yet we do not know what it is. For over 20 years, the DAMA collaboration has asserted that they observe a dark matter-induced annual modulation signal but their observation has yet to be confirmed by an independent measurement. DM-Ice17 is a prototype experiment consisting of 17 kg of NaI(Tl) detectors to test the DAMA's claimed detection of the dark matter annual modulation, which has been continuously operating at the South Pole since 2011. COSINE-100 is a joint experiment between DM-Ice and KIMS collaboration, situated at the Yangyang Underground Laboratory in South Korea. COSINE-100 consists of eight low background NaI(Tl) crystals with a total mass of 106 kg and 2000 liters of liquid scintillator as an active veto, and the physics run of the experiment began in September 2016. The recent results from DM-Ice17 and COSINE-100, including the status of the field, will be presented.

Hosted by: Chao Zhang

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