25-29 January 2019
LBL-Hill
US/Pacific timezone

Materials design for dark matter detection

29 Jan 2019, 10:00
25m
Building 66- Auditorium (LBL-Hill)

Building 66- Auditorium

LBL-Hill

Lawrence Berkeley National Lab Berkeley, California
Quantum sensing Sensing III

Speaker

Dr Sinéad Griffin (Lawrence Berkeley National Laboratory)

Description

The direct detection of light dark matter (DM) relies on harnessing low-threshold events in target materials. Here I will discuss two proposals for the direct detection of light DM; Dirac materials and polar semiconductors. Using first-principles methods, we calculate the material-specific matrix elements, and show that DM scattering in an anisotropic crystal has a strong directional dependence. We find that both Dirac electron and phonon-based detectors have comparable or greater sensitivity to sub-MeV dark matter scattering and sub-eV dark matter absorption than other current proposals.

Primary author

Dr Sinéad Griffin (Lawrence Berkeley National Laboratory)

Co-authors

Kathryn Zurek Simon Knapen (IAS Princeton) Tongyan Lin (UCSD) Yoni Kahn (University of Chicago)

Presentation Materials

There are no materials yet.