A1 Journal article (refereed)
Solar neutrino detection in liquid xenon detectors via charged-current scattering to excited states (2020)

Haselschwardt, S., Lenardo, B., Pirinen, P., & Suhonen, J. (2020). Solar neutrino detection in liquid xenon detectors via charged-current scattering to excited states. Physical Review D, 102(7), Article 072009. https://doi.org/10.1103/physrevd.102.072009

JYU authors or editors

Publication details

All authors or editors: Haselschwardt, Scott; Lenardo, Brian; Pirinen, Pekka; Suhonen, Jouni

Journal or series: Physical Review D

ISSN: 2470-0010

eISSN: 2470-0029

Publication year: 2020

Volume: 102

Issue number: 7

Article number: 072009

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/physrevd.102.072009

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/72483

Web address of parallel published publication (pre-print): https://arxiv.org/abs/2009.00535


We investigate the prospects for real-time detection of solar neutrinos via the charged-current neutrino-nucleus scattering process in liquid xenon time projection chambers. We use a nuclear shell model, benchmarked with experimental data, to calculate the cross sections for populating specific excited states of the cesium nuclei produced by neutrino capture on 131Xe and 136Xe. The shell model is further used to compute the decay schemes of the low-lying 1+ excited states of 136Cs, for which there is sparse experimental data. We explore the possibility of tagging the characteristic deexcitation γ rays/conversion electrons using two techniques: spatial separation of their energy deposits using event topology and their time separation using delayed coincidence. The efficiencies in each case are evaluated within a range of realistic detector parameters. We find that the topological signatures are likely to be dominated by radon backgrounds, but that a delayed-coincidence signature from long-lived states predicted in 136Cs may enable background-free detection of CNO neutrino interactions in next-generation experiments with smaller uncertainty than current measurements. We also estimate the sensitivity as a function of exposure for detecting the solar-temperature-induced line shift in 7Be neutrino emission, which may provide a new test of solar models.

Keywords: neutrinos; detectors; xenon; particle physics; nuclear physics

Free keywords: nuclear structure and decays; nucleus-neutrino interactions; shell model; solar neutrinos

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Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 2

Last updated on 2021-20-09 at 16:12