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 Vol. 121; no. 24; p. 241801
Main Authors:	Bertuzzo, Enrico, Jana, Sudip, Machado, Pedro A N, Zukanovich Funchal, Renata
Format:	Journal Article
Language:	English
Published:	United States American Physical Society 12-12-2018
Subjects:	Energy spectra Neutrinos PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Online Access:	Get full text
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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.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 arXiv:1807.09877; FERMILAB-PUB-18-336-T; OSU-HEP-18-04 USDOE Office of Science (SC), High Energy Physics (HEP) SC0016013; AC02-07CH11359
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.121.241801