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Search for inelastic WIMP-iodine scattering with COSINE-100

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Title
Search for inelastic WIMP-iodine scattering with COSINE-100
Author(s)
Adhikari, G.; Carlin, N.; Jaeyoung Cho; Jae Jin Choi; Choi, S.; Ezeribe, A.C.; França, L.E.; Ha, C.; Hahn, I.S.; Hollick, S.J.; Eun Ju Jeon; Joo, H.W.; W.G. Kang; Kauer, M.; Bongho Kim; Kim, H.J.; Kim, J.; Kyungwon Kim; Sung Sung Kim; Kim, S.K.; S.W. Kim; W.K. Kim; Yeongduk Kim; Yong Hamb Kim; Young Ju Ko; Lee, D.H.; Eun Kyoung Lee; Hye Jin Lee; Hyun Su Lee; Hye Young Lee; In Su Lee; Jaison Lee; Lee, J.Y.; Moo Hyun Lee; Sunghoon Lee; Lee, S.M.; Lee, Y.J.; Douglas Leonard; Luan, N.T.; Manzato, B.B.; Maruyama, R.H.; Neal, R.J.; Nikkel, J.A.; S.L. Olsen; B.J. Park; Park, H.K.; Park, H.S.; Park, J.C.; Kang Soon Park; Park, S.D.; Pitta, R.L.C.; Prihtiadi, H.; Se Jin Ra; Rott, C.; Keonah Shin; Cavalcante, D.F.F.S.; Scarff, A.; Son, M.K.; Spooner, N.J.C.; Truc, L.T.; Yang, L.; Gyunho Yu
Publication Date
2023-11
Journal
Physical Review D, v.108, no.9
Publisher
American Physical Society
Abstract
We report the results of a search for inelastic scattering of weakly interacting massive particles (WIMPs) off I127 nuclei using NaI(Tl) crystals with a data exposure of 97.7 kg·years from the COSINE-100 experiment. The signature of inelastic WIMP-I127 scattering is a nuclear recoil accompanied by a 57.6 keV γ-ray from the prompt deexcitation, producing a more energetic signal compared to the typical WIMP nuclear recoil signal. We found no evidence for this inelastic scattering signature and set a 90% confidence level upper limit on the WIMP-proton spin-dependent, inelastic scattering cross section of 1.2×10-37 cm2 at the WIMP mass 500 GeV/c2.
URI
https://pr.ibs.re.kr/handle/8788114/14709
DOI
10.1103/PhysRevD.108.092006
ISSN
2470-0010
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
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