# 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 !

## 63 - Photoneutron calibration of SuperCDMS detectors

Jun 4, 2019, 4:52 PM
2m
SWH 9082 + AQ South-East Corner / coin sud-est (Simon Fraser University)

### SWH 9082 + AQ South-East Corner / coin sud-est

#### Simon Fraser University

Poster (Non-Student) / Affiche (Non-étudiant(e)) Particle Physics / Physique des particules (PPD)

### Speaker

Emanuele Michielin (University of British Columbia)

### Description

The SuperCDMS (Cryogenic Dark Matter Search) experiment has pioneered the use of low-temperature solid-state detectors to search for dark matter particle candidates.
Detectors operating in CDMSlite mode allowed searches for particles with masses down to about 2 GeV/$c^{2}$ by pushing the analysis threshold to nuclear recoil energies down
to about 0.5 keV. However, one of the main uncertainties for the sensitivity for such searches is the lack of an accurate understanding of the nuclear recoil energy scale in this low spectral range.

During the SuperCDMS Soudan operations, data was collected using two low-energy photoneutron sources, $^{88}$Y and $^{124}$Sb placed next to a $^9$Be target. I will describe the implementation and the
result of a likelihood analysis used to determine the nuclear recoil energy scale at low energy of the Ge detectors from these data sets. This work will help to improve the sensitivity of the upcoming
SuperCDMS SNOLAB experiment, where upgraded detectors will allow searches for particles with masses down to about 0.5 GeV/$c^{2}$.

### Primary author

Emanuele Michielin (University of British Columbia)

### Presentation materials

There are no materials yet.