Charged liquid surface instabilities and detection of Solar neutrino by XENONnT

TL;DR

This paper discusses the detection of solar neutrinos using the XENONnT detector and examines how surface charge instabilities and distortions could impact the accuracy of neutrino measurements.

Contribution

It highlights the potential systematic errors caused by charged surface instabilities in the XENONnT detector during solar neutrino detection.

Findings

Surface charges and instabilities are present across the detector surface.

Anomalies at wire crossing regions suggest charge accumulation effects.

Surface distortions could lead to significant measurement errors.

Abstract

Announcement of detection of Solar 8B neutrinos by XENONnT dual-phase detector come with a suite of unexplained detector effects. We expect accumulation of surface charges and charged surface instability resulting in maximal surface elevation and charge density at wire crossing regions, where anomalies were observed. Thou data from these regions were excluded from analysis, surface distortions and charges are present everywhere, which can lead to large systematic errors in small signal detection.