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

Journal Article · · Physical Review D
 [1];  [2];  [3];  [1];  [4]
  1. Univ. of Texas at Arlington, Arlington, TX (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Harvard Univ., Cambridge, MA (United States)
  4. 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; PRVDAQ; TRN: US1900277
Journal Information:
Physical Review D, Vol. 97, Issue 7; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

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Cited By (2)

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

Figures / Tables (8)


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