Search for Boosted Dark Matter in COSINE-100open access
- Authors
- Adhikari, G.; Carlin, N.; Choi, J.J.; Choi, S.; Ezeribe, A.C.; França, L.E.; Ha, C.; Hahn, I.S.; Hollick, S.J.; Jeon, E.J.; Jo, J.H.; Joo, H.W.; Kang, W.G.; Kauer, M.; Kim, B.H.; Kim, H.J.; Kim, J.; Kim, K.W.; Kim, S.H.; Kim, S.K.; Kim, W.K.; Kim, Y.D.; Kim, Y.H.; Ko, Y.J.; Lee, D.H.; Lee, E.K.; Lee, H.; Lee, H.S.; Lee, H.Y.; Lee, I.S.; Lee, J.; Lee, J.Y.; Lee, M.H.; Lee, S.H.; Lee, S.M.; Lee, Y.J.; Leonard, D.S.; Luan, N.T.; Manzato, B.B.; Maruyama, R.H.; Neal, R.J.; Nikkel, J.A.; Olsen, S.L.; Park, B.J.; Park, H.K.; Park, H.S.; Park, K.S.; Park, S.D.; Pitta, R.L.C.; Prihtiadi, H.; Ra, S.J.; Rott, C.; Shin, K.A.; Cavalcante, D.F.F.S.; Scarff, A.; Spooner, N.J.C.; Thompson, W.G.; Yang, L.; Yu, G.H.
- Issue Date
- Nov-2023
- Publisher
- American Physical Society
- Citation
- Physical review letters, v.131, no.20
- Journal Title
- Physical review letters
- Volume
- 131
- Number
- 20
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/70691
- DOI
- 10.1103/PhysRevLett.131.201802
- ISSN
- 0031-9007
1079-7114
- Abstract
- We search for energetic electron recoil signals induced by boosted dark matter (BDM) from the galactic center using the COSINE-100 array of NaI(Tl) crystal detectors at the Yangyang Underground Laboratory. The signal would be an excess of events with energies above 4 MeV over the well-understood background. Because no excess of events are observed in a 97.7 kg·yr exposure, we set limits on BDM interactions under a variety of hypotheses. Notably, we explored the dark photon parameter space, leading to competitive limits compared to direct dark photon search experiments, particularly for dark photon masses below 4 MeV and considering the invisible decay mode. Furthermore, by comparing our results with a previous BDM search conducted by the Super-Kamionkande experiment, we found that the COSINE-100 detector has advantages in searching for low-mass dark matter. This analysis demonstrates the potential of the COSINE-100 detector to search for MeV electron recoil signals produced by the dark sector particle interactions.
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