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Search for inelastic scattering of WIMP dark matter in XENON1T

XENON Collaboration; Aprile, E.; Aalbers, J.; Agostini, F.; Alfonsi, M.; Althueser, L.; Amaro, F. D.; Andaloro, S.; Angelino, E.; Angevaare, J. R.; Antochi, V. C.; Arneodo, F.; Baudis, L.; Bauermeister, B.; Bellagamba, L.; Benabderrahmane, M. L.; Brown, A.; Brown, E.; Bruenner, S.; Bruno, G.; Budnik, R.; ... mehr

We report the results of a search for the inelastic scattering of weakly interacting massive particles (WIMPs) in the XENON1T dark matter experiment. Scattering off 129Xe is the most sensitive probe of inelastic WIMP interactions, with a signature of a 39.6 keV de-excitation photon detected simultaneously with the nuclear recoil. Using an exposure of 0.89 tonne-years, we find no evidence of inelastic WIMP scattering with a significance of more than 2σ. A profile-likelihood ratio analysis is used to set upper limits on the cross-section of WIMP-nucleus interactions. We exclude new parameter space for WIMPs heavier than 100 GeV/c2, with the strongest upper limit of 3.3×10−39 cm2 for 130 GeV/c2 WIMPs at 90\% confidence level.

Verlagsausgabe §
DOI: 10.5445/IR/1000130818/pub
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Forschungsbericht/Preprint
Publikationsdatum 26.02.2021
Sprache Englisch
Identifikator KITopen-ID: 1000130823
HGF-Programm 51.13.01 (POF IV, LK 01) Neutrinophysik und Dunkle Materie
Umfang 9 S.
Nachgewiesen in arXiv
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