Search for Boosted Dark Matter in COSINE-100

Authors

G Adhikari
N Carlin
J J Choi
S Choi
A C Ezeribe
L E França
C Ha
I S Hahn
S J Hollick
E J Jeon
J H Jo
H W Joo
W G Kang
M Kauer
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 Kim
Y J Ko
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 Lee
D S Leonard
N T Luan
B B Manzato
R H Maruyama
R J Neal
J A Nikkel
S L Olsen
B J Park
H K Park
H S Park
K S Park
S D Park
R L C Pitta
H Prihtiadi
S J Ra
C Rott
K A Shin
D F F S Cavalcante
A Scarff
N J C Spooner
W G Thompson
L Yang
G H Yu
COSINE-100 Collaboration

Language

English

Publication Date

11-17-2023

Journal

Physical Review Letters

DOI

10.1103/PhysRevLett.131.201802

PMID

38039466

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.

Published Open-Access

yes

Recommended Citation

Adhikari, G; Carlin, N; Choi, J J; et al., "Search for Boosted Dark Matter in COSINE-100" (2023). Faculty and Staff Publications. 7.
https://digitalcommons.library.tmc.edu/ethics_pub/7