A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g-2), and BaBar

Asli Abdullahi; Matheus Hostert; Silvia Pascoli

doi:10.1016/j.physletb.2021.136531

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A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g-2), and BaBar

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A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g-2), and BaBar

Asli Abdullahi, Matheus Hostert and Silvia Pascoli

Physics letters. B, Vol.820, p.136531

09/10/2021

DOI: 10.1016/j.physletb.2021.136531

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Abstract

A recent update from MiniBooNE has strengthened the observed 4.8 sigma excess of e-like events. Motivated by this and other notable deviations from standard model predictions, such as the muon (g - 2), we propose a solution to low energy anomalies through a dark neutrino sector. The model is renormalizable and can also explain light neutrino masses with an anomaly-free and dark U (1)' gauge symmetry broken at the GeV scale. Large kinetic mixing leads to s-channel production of heavy neutral leptons at e(+)e(-) colliders, where we point out and explain a greater than or similar to 2 sigma excess observed in the BaBar monophoton data. Our model is also compatible with anomalous e-like events seen at old accelerator experiments, as well as with an excess of double vertex signatures observed at CCFR. (C) 2021 The Authors. Published by Elsevier B.V.

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Details

Title: Subtitle: A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g-2), and BaBar
Creators: Asli Abdullahi - Durham University
Matheus Hostert - University of Minnesota
Silvia Pascoli - Durham University
Resource Type: Journal article
Publication Details: Physics letters. B, Vol.820, p.136531
DOI: 10.1016/j.physletb.2021.136531
ISSN: 0370-2693
eISSN: 1873-2445
Publisher: Elsevier
Number of pages: 13
Grant note: FP7-IDEAS-ERC ERC-CG 617143 / European Research Council; European Research Council (ERC) Government of Canada through NSERC; Natural Sciences and Engineering Research Council of Canada (NSERC) UKRI Science, Technology and Facilities Council (STFC); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) Province of Ontario through Ontario Ministry of Economic Development, Job Creation and Trade, MEDT 690575; 674896 / European Union; European Union (EU)
Language: English
Date published: 09/10/2021
Academic Unit: Physics and Astronomy
Record Identifier: 9984946625602771

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