Search for Coherent Elastic Scattering of Solar B-8 Neutrinos in the XENON1T Dark Matter ExperimentShow others and affiliations
Number of Authors: 1382021 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 126, no 9, article id 091301Article in journal (Refereed) Published
Abstract [en]
We report on a search for nuclear recoil signals from solar B-8 neutrinos elastically scattering off xenon nuclei in XENON1T data, lowering the energy threshold from 2.6 to 1.6 keV. We develop a variety of novel techniques to limit the resulting increase in backgrounds near the threshold. No significant B-8 neutrinolike excess is found in an exposure of 0.6 t x y. For the first time, we use the nondetection of solar neutrinos to constrain the light yield from 1-2 keV nuclear recoils in liquid xenon, as well as nonstandard neutrino-quark interactions. Finally, we improve upon world-leading constraints on dark matter-nucleus interactions for dark matter masses between 3 and 11 GeV c(-2) by as much as an order of magnitude.
Place, publisher, year, edition, pages
2021. Vol. 126, no 9, article id 091301
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-192306DOI: 10.1103/PhysRevLett.126.091301ISI: 000627615900004PubMedID: 33750173OAI: oai:DiVA.org:su-192306DiVA, id: diva2:1545894
2021-04-202021-04-202022-02-25Bibliographically approved