There are many scenarios in which dark matter is a part of a multiplet with an electrically charged state. If WIMP dark matter is accompanied by a charged state separated by a small mass difference, it can form stable bound states with nuclei. The region of observable energy deposition via this process of bound state formation is O(1∼10 MeV). KamLAND-Zen is a large scintillator detector designed for neutrino-less double-beta decay search. This detector is also useful to detect dark matter bound state formations with nuclei. The result from the KamLAND-Zen 400 dataset is reported.
|ジャーナル||Journal of Physics: Conference Series|
|出版ステータス||Published - 2020 3 20|
|イベント||16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 - Toyama, Japan|
継続期間: 2019 9 9 → 2019 9 13
ASJC Scopus subject areas
- Physics and Astronomy(all)