@article{efa4f1f8dc744fa7be9d66bcf6cf7aca,
title = "Search for Boosted Dark Matter in COSINE-100",
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.",
author = "{COSINE-100 Collaboration} and G. Adhikari and N. Carlin and Choi, {J. J.} and S. Choi and Ezeribe, {A. C.} and Fran{\c c}a, {L. E.} and C. Ha and Hahn, {I. S.} and Hollick, {S. J.} and Jeon, {E. J.} and Jo, {J. H.} and Joo, {H. W.} and Kang, {W. G.} and M. Kauer and Kim, {B. H.} and Kim, {H. J.} and J. Kim and Kim, {K. W.} and Kim, {S. H.} and Kim, {S. K.} and Kim, {W. K.} and Kim, {Y. D.} and Kim, {Y. H.} and Ko, {Y. J.} and Lee, {D. H.} and Lee, {E. K.} and H. Lee and Lee, {H. S.} and Lee, {H. Y.} and Lee, {I. S.} and J. Lee and Lee, {J. Y.} and Lee, {M. H.} and Lee, {S. H.} and Lee, {S. M.} and Lee, {Y. J.} and Leonard, {D. S.} and Luan, {N. T.} and Manzato, {B. B.} and Maruyama, {R. H.} and Neal, {R. J.} and Nikkel, {J. A.} and Olsen, {S. L.} and Park, {B. J.} and Park, {H. K.} and Park, {H. S.} and Park, {K. S.} and Park, {S. D.} and Pitta, {R. L.C.} and H. Prihtiadi",
note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",
year = "2023",
month = nov,
day = "17",
doi = "10.1103/PhysRevLett.131.201802",
language = "English",
volume = "131",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "20",
}