Overview of the GRAMS (Gamma-Ray AntiMatter Survey) Project

Discussion timeslot (ZOOM-Meeting): 20. July 2021 - 18:00
ZOOM-Meeting URL: https://desy.zoom.us/j/91999581729
ZOOM-Meeting ID: 91999581729
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/43-New-and-Upcoming-Instruments-for-Space-Based-Gamma-Ray-Astronomy-GAD/87
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-05/6

Abstract:
'GRAMS (Gamma-Ray andxa0AntiMatterxa0Survey) is a next-generation proposed balloon/satellite mission that will be the first to target both MeV gamma-ray observations and antimatter-based indirect dark matter searches with axa0LArTPC (Liquid Argon Time Projection Chamber)xa0detector. Astrophysical observations at MeV energies have not yet been well-explored due to the complexity and difficulties of the event reconstruction of Compton scatterings. With a cost-effective, large-scalexa0LArTPC, a single LDB (Long-Duration Balloon) flight could provide an order of magnitude improved sensitivity compared to previous experiments. Additionally, GRAMS can uniquely explore dark matter parameter space via antimatter measurements. In particular, low-energy antideuterons can be background-free dark matter signatures. In this talk, I will give an overview of the GRAMS project and the detection concepts for MeV gamma rays and antiparticles.'

Authors: Tsuguo Aramaki
Collaboration: GRAMS

Indico-ID: 1035
Proceeding URL: https://pos.sissa.it/395/653