Adhikari, G., Carlin, N., Cho, J.Y. et al. (59 more authors) (2023) Search for inelastic WIMP-iodine scattering with COSINE-100. Physical Review D, 108 (9). 092006. ISSN 2470-0010
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.
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Copyright, Publisher and Additional Information: | © 2023 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | ||||||
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Institution: | The University of Sheffield | ||||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) | ||||||
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Depositing User: | Symplectic Sheffield | ||||||
Date Deposited: | 17 Jan 2024 15:49 | ||||||
Last Modified: | 17 Jan 2024 15:49 | ||||||
Published Version: | http://dx.doi.org/10.1103/physrevd.108.092006 | ||||||
Status: | Published | ||||||
Publisher: | American Physical Society (APS) | ||||||
Refereed: | Yes | ||||||
Identification Number: | https://doi.org/10.1103/physrevd.108.092006 | ||||||
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