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Tsuguo Aramaki (Northeastern)

Event Details

McDonald Institute Seminar Series

Location: Queen's: STI 501

Date: April 3, 2025

Time: 1:30pm - 2:30pm

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Gamma-ray observations and indirect dark matter searches with the GRAMS project.

GRAMS (Gamma-Ray and AntiMatter Survey) is one of the NASA Physics of the Cosmos suborbital missions, aiming for both MeV gamma-ray observations and antimatter-based indirect dark matter searches. With a low-cost, large-scale LArTPC (Liquid Argon Time Projection Chamber) detector, GRAMS can provide significantly improved sensitivities to gamma rays in a historically under-explored energy regime often referred to as the MeV Gap. GRAMS can also extensively probe a new dark matter parameter space via low-energy antinuclei measurements, including the regions suggested by the Fermi GCE (Galactic Center Excess) and AMS-02 antiproton excess. We recently had a successful engineering balloon flight in Japan and an antiproton beam test at J-PARC to demonstrate our detector performance. We are now preparing for the prototype balloon flight (pGRAMS) from Tucson, Arizona, in early 2026. In this talk, I will present an overview and the current status of the GRAMS project.

The McDonald Institute seminar will be held in Stirling 501. A zoom link is also available and shared via email by the organizers. Please reach out to admin@mcdonaldinstitute.ca for access.