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사범대학
과학교육과
Journal papers
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Search for Boosted Dark Matter in COSINE-100
Title
Search for Boosted Dark Matter in COSINE-100
Authors
Adhikari
;
G.
;
Carlin
;
N.
;
Choi
;
J.J.
;
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.
;
H.J.
;
J.
;
K.W.
;
S.H.
;
S.K.
;
W.K.
;
Y.D.
;
Y.H.
;
Ko
;
Y.J.
;
Lee
;
D.H.
;
E.K.
;
H.
;
H.S.
;
H.Y.
;
J.Y.
;
M.H.
;
S.M.
;
Leonard
;
D.S.
;
Luan
;
N.T.
;
Manzato
;
B.B.
;
Maruyama
;
R.H.
;
Neal
;
R.J.
;
Nikkel
;
J.A.
;
Olsen
;
S.L.
;
Park
;
B.J.
;
H.K.
;
K.S.
;
S.D.
;
Pitta
;
R.L.C.
;
Prihtiadi
;
Ra
;
Rott
;
Shin
;
K.A.
;
Cavalcante
;
D.F.F.S.
;
Scarff
;
A.
;
Spooner
;
N.J.C.
;
Thompson
;
Yang
;
L.
;
Yu
;
G.H.
Ewha Authors
한인식
SCOPUS Author ID
한인식
Issue Date
2023
Journal Title
Physical Review Letters
ISSN
0031-9007
Citation
Physical Review Letters vol. 131, no. 20
Publisher
American Physical Society
Indexed
SCIE; SCOPUS
Document Type
Article
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. © 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.
DOI
10.1103/PhysRevLett.131.201802
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