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pp solar neutrinos at DARWIN

de Gouvêa, André; McGinness, Emma; Martinez-Soler, Ivan; Perez-Gonzalez, Yuber F.

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André de Gouvêa

Emma McGinness

Ivan Martinez-Soler


The DARWIN collaboration recently argued that DARWIN (dark matter wimp search with liquid xenon) can collect, via neutrino-electron scattering, a large, useful sample of solar pp-neutrinos, and measure their survival probability with subpercent precision. We explore the physics potential of such a sample in more detail. We estimate that, with 300 ton-years of data, DARWIN can also measure, with the help of current solar neutrino data, the value of sin2θ13, with the potential to exclude sin2θ13 ¼ 0 close to the three-sigma level. We explore in some detail how well DARWIN can constrain the existence of a new neutrino masseigenstate ν4 that is quasimass-degenerate with ν1 and find that DARWIN’s sensitivity supersedes that of all current and near-future searches for new, very light neutrinos. In particular, DARWIN can test the hypothesis that ν1 is a pseudo-Dirac fermion as long as the induced mass-squared difference is larger than 10−13 eV2, one order of magnitude more sensitive than existing constraints. Throughout, we allowed for the hypotheses that DARWIN is filled with natural xenon or 136Xe-depleted xenon.


de Gouvêa, A., McGinness, E., Martinez-Soler, I., & Perez-Gonzalez, Y. F. (2022). pp solar neutrinos at DARWIN. Physical Review D, 106(9),

Journal Article Type Article
Acceptance Date Oct 26, 2022
Online Publication Date Nov 17, 2022
Publication Date 2022
Deposit Date Mar 20, 2023
Publicly Available Date Mar 23, 2023
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 106
Issue 9


Published Journal Article (1.4 Mb)

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Copyright Statement
Published by the American Physical Society under the terms of
the Creative Commons Attribution 4.0 International license.
Further distribution of this work must maintain attribution to
the author(s) and the published article’s title, journal citation,
and DOI. Funded by SCOAP3

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