We show that by exploiting the process of Coherent Elastic neutrino (v) Nucleus Scattering (CEvNS), neutrino measurements by nuclear reactor experiments appear to corroborate the evidence of the so-called X17 particle, which has been invoked to explain the ATOMKI anomaly. We base our analysis primarily on CONUS+ and Dresden-II data, which, when combined with CEvNS data from COHERENT and neutrino oscillation data from IceCube, single out a unique region of couplings to neutrinos and nuclei.
@article{arxiv.2605.10689,
title = {The X17 Existence Hinted at by Nuclear Reactor Neutrinos},
author = {Johan Rathsman and Joakim Cederkäll and Yasar Hicyilmaz and Else Lytken and Stefano Moretti},
journal= {arXiv preprint arXiv:2605.10689},
year = {2026}
}
Comments
References updated and text streamlined. One figure replaced. Results unchanged. Short version of 2603.15246 using a different model for the X17