Gamma-Ray and AntiMatter Survey (GRAMS) is a next-generation experiment using a Liquid Argon Time Projection Chamber (LArTPC) to detect gamma rays and antiparticles. Especially for antiparticle detection, GRAMS could reach high sensitivity within the low energy region (< 0.5GeV ) using a cost-effective LArTPC design. GRAMS is projected to be able to make background-free dark matter measurements from antimatter detection in the energy range of 0.1-0.5 GeV/n.
In this poster, I will introduce the GRAMS detection concept and particle identification techniques. With the GRAMS instrument, we could detect antiprotons, antideuterons and potentially antihelium nuclei. I will introduce the method of separating antihelium from the antiproton background. Based on this method, I will talk about the flux limit that GRAMS can reach for antihelium-3. This method will provide an opportunity to test a variety of dark matter models.
AntiHelium-3 Search with the GRAMS Experiment
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Pre-published on:
August 17, 2023
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Abstract
DOI: https://doi.org/10.22323/1.444.1407
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.