Date and time: Tuesday, March 2nd at 16:00 CET

Speaker:  Tongyan Lin (UC San Diego)

Title: Dark matter scattering in dielectrics

Abstract: Direct detection experiments are rapidly advancing in the search for sub-GeV dark matter. As energy thresholds become lower, the many-body physics of a target material becomes increasingly important to understand in determining the dark matter signal. In this talk, I will show how dark matter scattering in dielectric materials can be understood in terms of the dielectric response. This provides both a useful conceptual framing, and also allows us to calculate several new effects. I will then discuss two applications: screening effects for dark matter electron scattering, and the Migdal effect in semiconductors.

Slides: files/2021_03_02_Tongyan-Lin.pdf

Video: https://zoom.us/rec/share/PU4pObzMIKr2FCLtuK_I9ctZMjbhVdgxhAlnasg6gfF_cZeO6uIpRiCJWG-LzYGF._eX_omCg3Bx9PABm

 

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