Dark Neutrino Portal to Explain MiniBooNE Excess

We present a novel framework that provides an explanation to the long-standing excess of electronlike 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 ne...

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Bibliographic Details
Published in:Physical review letters 2018-12, Vol.121 (24), p.241801-241801, Article 241801
Main Authors: Bertuzzo, Enrico, Jana, Sudip, Machado, Pedro A N, Zukanovich Funchal, Renata
Format: Article
Language:English
Subjects:
Energy spectra
Neutrinos
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Summary:We present a novel framework that provides an explanation to the long-standing excess of electronlike 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 electronlike events. This mechanism provides an excellent fit to MiniBooNE energy spectra and angular distributions.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.121.241801