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arXiv · 2304.09877

Neutrino Constraints and the ATOMKI X17 Anomaly

Peter B. Denton·Julia Gehrlein
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Abstract

Recent data from the ATOMKI group continues to confirm their claim of the existence of a new $\sim17$ MeV particle. We review and numerically analyze the data and then put into context constraints from other experiments, notably neutrino scattering experiments such as the latest reactor anti-neutrino coherent elastic neutrino nucleus scattering data and unitarity constraints from solar neutrino observations. We show that minimal scenarios are disfavored and discuss the model requirements to evade these constraints.

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Peter B. Denton, Julia Gehrlein. 2023-04-19. Neutrino Constraints and the ATOMKI X17 Anomaly. https://doi.org/10.1103/physrevd.108.015009

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