2019 CAP Congress / Congrès de l'ACP 2019

Direct plasmon production from Thomson scattering in SuperCDMS silicon detectors

5 Jun 2019, 11:30

15m

HC 126 (Simon Fraser University)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle) Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI) W1-7 Detectors for Particle Physics (DAPI/PPD) | Détecteurs pour la physique des particules (DPAI/PPD)

Speaker

Émile Michaud (Université de Montréal)

Description

SuperCDMS (Super Cryogenic Dark Matter Search) is an experiment for the direct detection of dark matter with great sensitivity to Compton scattering at low energies where electron binding and crystal structure affect Compton scattering spectra. We can take advantage of the SuperCDMS detector sensitivity to these low energies to look for plasmon production from Thomson scattering in silicon. Using the adiabatic local-density approximation (ALDA) of the dynamic structure factor $S(\mathbf{\text{q}},\omega )$ of silicon, we expect the differential cross section of plasmon production from Thomson scattering to be high enough so that our detectors could be the first in the world to detect these plasmons. We will report on the status of the search for a signal from plasmon production.

Presentation materials

Plasmon Production5.pdf