Panorama of new-physics explanations to the MiniBooNE excess

Asli M. Abdullahi; Jaime Hoefken Zink; Matheus Hostert; Daniele Massaro; Silvia Pascoli

doi:10.1103/PhysRevD.111.035028

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Panorama of new-physics explanations to the MiniBooNE excess

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Panorama of new-physics explanations to the MiniBooNE excess

Asli M. Abdullahi, Jaime Hoefken Zink, Matheus Hostert, Daniele Massaro and Silvia Pascoli

Physical review. D, Vol.111(3), 035028

02/27/2025

DOI: 10.1103/PhysRevD.111.035028

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Abstract

The MiniBooNE low-energy excess stands as an unexplained anomaly in short-baseline neutrino oscillation experiments. It has been shown that it can be explained in the context of dark sector models. Here, we provide an overview of the possible new-physics solutions based on electron, photon, and dilepton final states. We systematically discuss the various production mechanisms for dark particles in neutrino-nucleus scattering. Our main result is a comprehensive fit to the MiniBooNE energy spectrum in the parameter space of dark neutrino models, where short-lived heavy neutral leptons are produced in neutrino interactions and decay to e+e- pairs inside the detector. For the first time, other experiments will be able to directly confirm or rule out dark neutrino interpretations of the MiniBooNE low-energy excess.

Physical Sciences

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Astronomy & Astrophysics

Physics, Particles & Fields

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Details

Title: Subtitle: Panorama of new-physics explanations to the MiniBooNE excess
Creators: Asli M. Abdullahi - Fermi National Accelerator Laboratory
Jaime Hoefken Zink - National Centre for Nuclear Research
Matheus Hostert - Harvard University Press
Daniele Massaro - University of Bologna
Silvia Pascoli - Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
Resource Type: Journal article
Publication Details: Physical review. D, Vol.111(3), 035028
DOI: 10.1103/PhysRevD.111.035028
ISSN: 2470-0010
eISSN: 2470-0029
Publisher: Amer Physical Soc
Number of pages: 34
Grant note: Perimeter Institute for Theoretical Physics 860881-HIDDeN / European Union; European Union (EU) 2021/42/E/ST2/00031 / National Science Centre, Poland Province of Ontario through the Ministry of Colleges and Universities Government of Canada through the Department of Innovation, Science, and Economic Development
Language: English
Date published: 02/27/2025
Academic Unit: Physics and Astronomy
Record Identifier: 9984946626102771

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