# 2019 CAP Congress / Congrès de l'ACP 2019

2-7 June 2019
Simon Fraser University
America/Vancouver timezone
Welcome to the 2019 CAP Congress Program website! / Bienvenue au siteweb du programme du 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)

### 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)

### 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 $S(\textbf{q},\omega)$ 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.

### Primary author

Émile Michaud (Université de Montréal)