Low-Energy Threshold Analysis Using the DEAP-3600 Dark Matter Detector

It appears your Web browser is not configured to display PDF files. Download adobe Acrobat or click here to download the PDF file.

Click here to download the PDF file.

Creator: 

Lock, Jesse Johnathan Dean

Date: 

2019

Abstract: 

DEAP-3600 is a single-phase liquid argon WIMP detector located 2km underground in the SNOLAB research facility. DEAP-3600 is searching for dark matter; an elusive form of matter that was first postulated in the early 20th century, but has not yet been found. The goal of this work is to perform a low mass WIMP search. A low mass WIMP search is made possible by lowering the energy threshold of the hardware trigger from 1000ADC to 150ADC. Low energy events in the detector are characterized as Cherenkov radiation, low energy retriggers, or high energy retriggers; all of which are background events. The final data set has a live time of 2.10 days and an exposure of 4.41×103 kg·days using a LAr target mass of (3279±97) kg. The results from the low mass WIMP search is a WIMP-nucleon spin independent cross-section of 3.96×10−42cm2 at a 90% CL corresponding to WIMPs with mass 55 GeV/c2.

Subject: 

Elementary Particles and High Energy

Language: 

English

Publisher: 

Carleton University

Thesis Degree Name: 

Master of Science: 
M.Sc.

Thesis Degree Level: 

Master's

Thesis Degree Discipline: 

FLAG

Parent Collection: 

Theses and Dissertations

Items in CURVE are protected by copyright, with all rights reserved, unless otherwise indicated. They are made available with permission from the author(s).