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Title: New light Higgs boson and short-baseline neutrino anomalies

Journal Article · · Physical Review D

The low-energy excesses observed by the MiniBooNE experiment have, to date, defied a convincing explanation under the standard model even with accommodation for non-zero neutrino mass. In this paper we explore a new oscillation mechanism to explain these anomalies, invoking a light neutrinophilic Higgs boson, conceived to induce a low Dirac neutrino mass in accord with experimental limits. Beam neutrinos forward-scattering off of a locally over-dense relic neutrino background give rise to a novel matter-effect with an energy-specific resonance. An enhanced oscillation around this resonance peak produces flavor transitions which are highly consistent with the MiniBooNE neutrino- and antineutrino-mode data sets. The model provides substantially improved $$\chi^2$$ values beyond either the no-oscillation hypothesis or the more commonly explored 3+1 sterile neutrino hypothesis. This mechanism would introduce distinctive signatures at each baseline in the upcoming SBN program at Fermilab, presenting opportunities for further exploration.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1438974
Report Number(s):
PNNL-SA-131323; PRVDAQ
Journal Information:
Physical Review D, Vol. 97, Issue 7; ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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Cited By (5)

Significant Excess of Electronlike Events in the MiniBooNE Short-Baseline Neutrino Experiment journal November 2018
Dark Neutrino Portal to Explain MiniBooNE Excess journal December 2018
Testing New Physics Explanations of the MiniBooNE Anomaly at Neutrino Scattering Experiments journal December 2019
Significant Excess of ElectronLike Events in the MiniBooNE Short-Baseline Neutrino Experiment text January 2018
Dark Neutrino Portal to Explain MiniBooNE excess text January 2018

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