Dipole-coupled heavy-neutral-lepton explanations of the MiniBooNE excess including constraints from MINERvA data

N. W. Kamp; M. Hostert; A. Schneider; S. Vergani; C. A. Argueelles; J. M. Conrad; M. H. Shaevitz; M. A. Uchida

doi:10.1103/PhysRevD.107.055009

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Dipole-coupled heavy-neutral-lepton explanations of the MiniBooNE excess including constraints from MINERvA data

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Dipole-coupled heavy-neutral-lepton explanations of the MiniBooNE excess including constraints from MINERvA data

N. W. Kamp, M. Hostert, A. Schneider, S. Vergani, C. A. Argueelles, J. M. Conrad, M. H. Shaevitz and M. A. Uchida

Physical review. D, Vol.107(5), 055009

03/01/2023

DOI: 10.1103/PhysRevD.107.055009

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Abstract

We revisit models of heavy neutral leptons (neutrissimos) with transition magnetic moments as explanations of the 4.8a excess of electronlike events at MiniBooNE. We first reexamine the preferred regions in the model parameter space to explain MiniBooNE, considering also potential contributions from oscillations due to an eV-scale sterile neutrino. We then derive constraints on the model using neutrinoelectron elastic scattering data from MINERvA. To carry out these analyses, we have developed a detailed Monte Carlo simulation of neutrissimo interactions within the MiniBooNE and MINERvA detectors using the LeptonInjector framework. This simulation allows for a significantly more robust evaluation of the neutrissimo model compared to previous studies in the literature-a necessary step in order to begin making definitive statements about beyond the Standard Model explanations of the MiniBooNE excess. We find that MINERvA rules out a large region of parameter space, but allowed solutions exist at the 2a confidence level. A dedicated MINERvA analysis would likely be able to probe the entire region of preference of MiniBooNE in this model.

Astronomy & Astrophysics

Physical Sciences

Physics

Physics, Particles & Fields

Science & Technology

Details

Title: Subtitle: Dipole-coupled heavy-neutral-lepton explanations of the MiniBooNE excess including constraints from MINERvA data
Creators: N. W. Kamp - Massachusetts Institute of Technology
M. Hostert - University of Minnesota
A. Schneider - Massachusetts Institute of Technology
S. Vergani - University of Cambridge
C. A. Argueelles - Harvard University
J. M. Conrad - Massachusetts Institute of Technology
M. H. Shaevitz - Columbia University
M. A. Uchida - University of Cambridge
Resource Type: Journal article
Publication Details: Physical review. D, Vol.107(5), 055009
DOI: 10.1103/PhysRevD.107.055009
ISSN: 2470-0010
eISSN: 2470-0029
Publisher: Amer Physical Soc
Number of pages: 16
Grant note: PHY-1801996; PHY-1707971 / NSF; National Science Foundation (NSF) Province of Ontario through the Ministry of Research, Innovation, and Science; Ministry of Research and Technology of the Republic of Indonesia (RISTEK) Faculty of Arts and Sciences of Harvard University Perimeter Institute for Theoretical Physics Department of Physics at the University of Cambridge Government of Canada through the Department of Innovation, Science and Economic Development STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) Alfred P. Sloan Foundation 1745302 / NSF Graduate Research Fellowship; National Science Foundation (NSF)
Language: English
Date published: 03/01/2023
Academic Unit: Physics and Astronomy
Record Identifier: 9984945920502771

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