Dark Matter scattering in dielectrics


Knapen, S. (2021). Dark Matter scattering in dielectrics. Perimeter Institute. https://pirsa.org/21090014


Knapen, Simon. Dark Matter scattering in dielectrics. Perimeter Institute, Sep. 14, 2021, https://pirsa.org/21090014


          @misc{ pirsa_21090014,
            doi = {10.48660/21090014},
            url = {https://pirsa.org/21090014},
            author = {Knapen, Simon},
            keywords = {Particle Physics},
            language = {en},
            title = {Dark Matter scattering in dielectrics},
            publisher = {Perimeter Institute},
            year = {2021},
            month = {sep},
            note = {PIRSA:21090014 see, \url{https://pirsa.org}}
Talk Type Scientific Series


I will discuss a set of calculations of dark matter interactions with low threshold semi-conductor detectors such as SENSEI and superCDMS. As a warm-up, I'll show how to rephrase traditional DM-electron scattering calculations in terms of the energy loss function of the material. We will then apply this framework to compute the rate for the Migdal effect in semi-conductor targets. This is needed because the traditional calculations of the Migdal effect do not apply in low threshold semi-conductor detectors, as the delocalized nature of the valence electrons is not taken into account.