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arXiv · 1807.09877

Dark Neutrino Portal to Explain MiniBooNE excess

Enrico Bertuzzo·Sudip Jana·Pedro A. N. Machado·Renata Zukanovich Funchal
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Abstract

We present a novel framework that provides an explanation to the long-standing excess of electron-like events in the MiniBooNE experiment at Fermilab. We suggest a new dark sector containing a dark neutrino and a dark gauge boson, both with masses between a few tens and a few hundreds of MeV. Dark neutrinos are produced via neutrino-nucleus scattering, followed by their decay to the dark gauge boson, which in turn gives rise to electron-like events. This mechanism provides an excellent fit to MiniBooNE energy spectra and angular distributions.

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Enrico Bertuzzo, Sudip Jana, Pedro A. N. Machado, Renata Zukanovich Funchal. 2019-01-21. Dark Neutrino Portal to Explain MiniBooNE excess. https://doi.org/10.1103/physrevlett.121.241801

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