Speaker: Masaki Yamashita (ICRR)
Title: Searching for dark matter with liquid xenon
Date (JST): Tue, Apr 18, 2017, 15:30 - 16:30
Place: Seminar Room A
Related File: 1860.pdf
Abstract: Finding and characterisation of dark matter is one the the major experimental challenges of both particle and astrophysics. Observation based on astronomical and cosmological approaches reveal that the majority of matter is dark and interacts neither strongly nor electromagnetically with ordinary matter. Interestingly, possible extensions to the current models of particle and astrophysics provide candidates for Cold Dark Matter very directly such as Weakly Interacting Massive Particles (WIMPs). The direct detection experiments is aiming to detect dark matter in the form of WIMPs via their elastic scattering off nuclei by looking for small signal in the a few keV energy region. On the other hand, collider experiments at LHC do not show any indication for such particle. In this situation, it is also important to look for dark matter candidates other than WIMPs. XMASS experiment at Kamioka has been carried out dark matter searches with such views including signals associated with electron recoils as well in the detector. In this talk, the summary of XMASS results as well as recent annual modulation search will be presented with future prospects.
Seminar Video: [VIDEO]