2021年雪团感兴趣的信：GRAMS项目：MeV Gamma-Ray观测和基于反物质的暗物质探测
Snowmass 2021 Letter of Interest: The GRAMS Project: MeV Gamma-Ray Observations and Antimatter-Based Dark Matter Searches
摘要：
伽马射线和反物质巡天（GRAMS）项目是一个拟议的下一代气球/卫星飞行任务，目标是MeV伽马射线观测和基于反物质的暗物质搜索。具有成本效益的大规模液氩时间投影室（LArTPC）探测器技术将使GRAMS对MeV伽马射线的灵敏度显着提高，同时通过反物质测量广泛探测暗物质参数空间。
英文摘要：
The Gamma-Ray and AntiMatter Survey (GRAMS) project is a proposed next-generation balloon/satellite mission targeting both MeV gamma-ray observations and antimatter-based dark matter searches. A cost-effective, large-scale Liquid Argon Time Projection Chamber (LArTPC) detector technology will allow GRAMS to have a significantly improved sensitivity to MeV gamma rays while extensively probing dark matter parameter space via antimatter measurements.
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