2022 CAP Congress / Congrès de l'ACP 2022

(G*) (POS-33) Optical Calibration of the SNO+ Detector using Internal Backgrounds

7 Jun 2022, 17:42

2m

MUSC Marketplace (McMaster University)

Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle) Particle Physics / Physique des particules (PPD) PPD Poster Session & Student Poster Competition (21) | Session d'affiches PPD et concours d'affiches étudiantes (21)

Speakers

Dr Serena Riccetto (Queen's University)Ms Rayhaneh Dehghani (Queen's University) Anthony Allega (Queen's University)

Description

The SNO+ experiment is a multipurpose neutrino detector located 2 km underground at SNOLAB in Sudbury, Ontario. The primary goal of the experiment is to search for neutrinoless double beta $(0\nu \beta \beta )$ decay in liquid scintillator loaded with ${}^{130}$Te in a low-background environment. An observation of a $0\nu \beta \beta$ decay signal would demonstrate the Majorana nature of neutrinos. In order to resolve such a rare decay process, a precise optical calibration of the SNO+ detector is critical. This work presents a sensitive method of investigating the attenuation parameters in liquid scintillator by modelling the simulated radial light yield profiles of various internal background sources. The scintillator materials utilized in the SNO+ Monte Carlo (MC) simulation framework have been fine-tuned based on ex-situ measurements of the light yield and comparison to detector data.

Presentation materials

CAP2022_poster.pdf