New light Higgs boson and short-baseline neutrino anomalies
- Univ. of Texas at Arlington, Arlington, TX (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Harvard Univ., Cambridge, MA (United States)
- Univ. of Manchester, Manchester (United Kingdom)
Here, the low-energy excesses observed by the MiniBooNE experiment have, to date, defied a convincing explanation under the standard model even with accommodation for nonzero 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 overdense 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 χ2 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 short-baseline neutrino program at Fermilab, presenting opportunities for further exploration.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1437154
- Report Number(s):
- PNNL-SA--131323
- Journal Information:
- Physical Review D, Journal Name: Physical Review D Journal Issue: 7 Vol. 97; ISSN PRVDAQ; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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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