The GRAMS (Gamma-Ray and AntiMatter Survey) Project

GRAMS Collaboration

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Abstract

GRAMS (Gamma-Ray and AntiMatter Survey) is a balloon/satellite mission that will be the first to target both MeV gamma-ray observations and antimatter-based indirect dark matter searches with a LArTPC (Liquid Argon Time Projection Chamber) detector. With a cost-effective, large-scale LArTPC, GRAMS can have extensively improved sensitivities to MeV gamma rays and antinuclei compared with previous missions. GRAMS was recently selected for the NASA APRA-2022 (Astrophysics Research and Analysis) program, which includes the detector development and the prototype flight in the Fall 2025 or Spring 2026.

Original languageEnglish
Article number868
JournalProceedings of Science
Volume444
StatePublished - Sep 27 2024
Event38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan
Duration: Jul 26 2023Aug 3 2023

Funding

This work was supported by Tsuguo Aramaki\u2019s start-up funds from Northeastern University as well as JSPS KAKENHI grant numbers 20K22355, 20H00153, 22H00133, 22H01252, and 23H01211. We also acknowledge support from Barnard College and Columbia University.

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