TY - JOUR
T1 - Overview of the GRAMS (Gamma-Ray and AntiMatter Survey) Project
AU - the GRAMS Collaboration
AU - Aoyama, K.
AU - Aramaki, Tsuguo
AU - Asaadi, J.
AU - Fabris, L.
AU - Ichinohe, Y.
AU - Inoue, Y.
AU - Karagiorgi, G.
AU - Khamgulyan, D.
AU - Kimura, Masato
AU - Leyva, J.
AU - Mukherjee, R.
AU - Nakasone, T.
AU - Odaka, H.
AU - Perez, K.
AU - Sakurai, M.
AU - Seligman, W.
AU - Takashima, S.
AU - Tanaka, M.
AU - Tsuji, N.
AU - Yoneda, H.
AU - Yorita, K.
AU - Zeng, J.
N1 - Funding Information:
This work was supported by Tsuguo Aramaki’s start-up funds from Northeastern University. We acknowledge support from JSPS KAKENHI 610 grant numbers 20K22355 and 20H00153. We also acknowledge support from Barnard College and Columbia University.
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)
PY - 2022/3/18
Y1 - 2022/3/18
N2 - GRAMS (Gamma-Ray and AntiMatter Survey) 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 a LArTPC (Liquid Argon Time Projection Chamber) detector. Astrophysical observations at MeV energies have been poorly explored and long-neglected. With a cost-effective, large-scale LArTPC, a single LDB (Long-Duration Balloon) flight could provide an order of magnitude improved sensitivity compared to previous experiments. We can uniquely measure gamma rays from annihilating dark matter and evaporating primordial black holes. Additionally, GRAMS can extensively explore dark matter parameter space via antimatter measurements. In particular, low-energy antideuterons can be background-free dark matter signatures. We could deeply investigate the parameter space and validate the potential dark matter signatures suggested by the Fermi gamma-ray observations and AMS-02 antiparticle measurements.
AB - GRAMS (Gamma-Ray and AntiMatter Survey) 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 a LArTPC (Liquid Argon Time Projection Chamber) detector. Astrophysical observations at MeV energies have been poorly explored and long-neglected. With a cost-effective, large-scale LArTPC, a single LDB (Long-Duration Balloon) flight could provide an order of magnitude improved sensitivity compared to previous experiments. We can uniquely measure gamma rays from annihilating dark matter and evaporating primordial black holes. Additionally, GRAMS can extensively explore dark matter parameter space via antimatter measurements. In particular, low-energy antideuterons can be background-free dark matter signatures. We could deeply investigate the parameter space and validate the potential dark matter signatures suggested by the Fermi gamma-ray observations and AMS-02 antiparticle measurements.
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M3 - Conference article
AN - SCOPUS:85143829737
SN - 1824-8039
VL - 395
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 653
T2 - 37th International Cosmic Ray Conference, ICRC 2021
Y2 - 12 July 2021 through 23 July 2021
ER -