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SITP / Phenomonology seminar presents "Directly detecting sub-GeV dark matter with crystal targets"

Event date: 
Thursday, November 19, 2020 - 2:00 pm
Tongyan Lin (UCSD)

As direct detection experiments expand the search for sub-GeV dark matter and lower their energy thresholds, collective many-body effects can be increasingly important and enhance discovery potential. In this talk, I will discuss two broad classes of signals for sub-GeV dark matter scattering in crystalline targets. First, I will discuss the creation of charge signals from inelastic dark matter-nucleus scattering, which can be used to extend the reach of charge-collection experiments down to below 100 MeV. I will then propose single phonon excitations as a way to probe sub-MeV dark matter.