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Emission of single and few electrons in XENON1T and limits on light dark matter

XENON Collaboration; Aprile, E.; Abe, K.; Agostini, F.; Ahmed Maouloud, S.; Alfonsi, M.; Althueser, L.; Angelino, E.; Angevaare, J. R.; Antochi, V. C.; Antón Martin, D.; Arneodo, F.; Baudis, L.; Baxter, A. L.; Bellagamba, L.; Bernard, A.; Biondi, R.; Bismark, A.; Brown, A.; ... mehr

Abstract:

Delayed single- and few-electron emissions plague dual-phase time projection chambers, limiting their potential to search for light-mass dark matter. This paper examines the origins of these events in the XENON1T experiment. Characterization of the intensity of delayed electron backgrounds shows that the resulting emissions are correlated, in time and position, with high-energy events and can effectively be vetoed. In this work we extend previous S2-only analyses down to a single electron. From this analysis, after removing the correlated backgrounds, we observe rates <30 events/(electron×kg×day) in the region of interest spanning 1 to 5 electrons. We derive 90% confidence upper limits for dark matter-electron scattering, first direct limits on the electric dipole, magnetic dipole, and anapole interactions, and bosonic dark matter models, where we exclude new parameter space for dark photons and solar dark photons.


Verlagsausgabe §
DOI: 10.5445/IR/1000149374
Veröffentlicht am 02.08.2022
Originalveröffentlichung
DOI: 10.1103/PhysRevD.106.022001
Scopus
Zitationen: 33
Web of Science
Zitationen: 24
Dimensions
Zitationen: 39
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 15.07.2022
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
KITopen-ID: 1000149374
HGF-Programm 51.13.01 (POF IV, LK 01) Neutrinophysik und Dunkle Materie
Erschienen in Physical Review D
Verlag American Physical Society (APS)
Band 106
Heft 2
Seiten Art.-Nr.: 022001
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 05.07.2022
Nachgewiesen in arXiv
Dimensions
Web of Science
Scopus
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