2026 CAP Congress / Congrès de l'ACP 2026

Session

(PPD) M1-7 | (PPD)

M1-7

22 Jun 2026, 10:15

U. Ottawa - Learning Crossroads (CRX) Building

840. Status and perspectives of DEAP-3600 experiment

Michela Lai (Queens University)

22/06/2026, 10:15

Particle Physics / Physique des particules (PPD)

Invited Speaker / Conférencier(ère) invité(e)

DEAP‑3600, with its 3.3‑tonne liquid argon target, is a dark matter direct‑detection experiment located at SNOLAB in Sudbury, Canada. Detector upgrades have been ongoing since the end of the second fill run in 2020 to reduce backgrounds from shadowed alphas and dust dissolved in the liquid in the just‑started third fill run. We present here the most recent results from the WIMP search,...

695. Solar Neutrino Absorption on Argon-40 in DEAP-3600

Michael Perry

22/06/2026, 10:45

Particle Physics / Physique des particules (PPD)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

DEAP-3600 (Dark matter Experiment using Argon Pulseshape discrimination) is currently the largest single-phase argon dark matter detector in the world, housing over three tonnes of liquid argon. This makes it an excellent medium for searching for solar neutrino absorption on argon-40, a process first theoretically predicted in the 1980s. This process can be used for sensitive measurement of...

879. What Neutrinos in Dark Matter Experiments, like DarkSide-20k, Can Tell Us

Ryan Curtis

22/06/2026, 11:00

Particle Physics / Physique des particules (PPD)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

The Global Argon Dark Matter Collaboration (GADMC), formed to unite liquid argon–based dark matter experiments, is currently constructing its next-generation experiment DarkSide-20k. Located at the Laboratori Nazionali del Gran Sasso (LNGS), DarkSide-20k builds upon the success of previous argon experiments, including its predecessor, DarkSide-50, to continue the search for weakly interacting...

550. Nuclear Physics in Liquid Argon with DEAP-3600

Peter Taylor (Queens University)

22/06/2026, 11:15

Particle Physics / Physique des particules (PPD)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

With the technical complexity required by ongoing dark matter direct detection experiments, as well as requiring more refined background rejection techniques, some direct detection experiments have the ability to investigate neutrinos as well. One such detector in recent years involves the liquid argon based DEAP-3600 experiment. The detector assembly allows for nearly 3600 kg of liquid argon...

629. Towards a Low-Mass WIMP Search with the Scintillating Bubble Chamber

Gary Sweeney (Queen's University)

22/06/2026, 11:30

Particle Physics / Physique des particules (PPD)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

The Scintillating Bubble Chamber (SBC) collaboration is combining the well-established technologies of bubble chambers with a liquid-noble scintillating target to develop a detector sensitive to sub-keV nuclear recoils with the goal of a GeV-scale WIMP dark matter search. Bubble chambers provide excellent electron recoil suppression, down to sub-keV thresholds as proven by a prototype xenon...

671. Event selection and machine learning reconstruction for the ARGO dark-matter detector

Tiana Fandresena Gérald Ramonjison (Simon Fraser University)

22/06/2026, 11:45

Particle Physics / Physique des particules (PPD)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

ARGO is a planned large liquid-argon detector for the direct detection of dark matter, using underground argon to reduce intrinsic radioactive backgrounds. A key analysis challenge is to efficiently select nuclear-recoil events from WIMP-like interactions. The analysis focuses on rejecting electronic recoils and surface-alpha backgrounds, while studying neutron-induced nuclear recoils.

This...