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

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

A recent update from MiniBooNE has strengthened the observed 4.8σ 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...

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Main Authors: Asli Abdullahi, Matheus Hostert, Silvia Pascoli
Format: Article
Language:English
Published: Elsevier 2021-09-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269321004718
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spelling doaj-afbb226cb2fe4c1383015591f408d38b2021-10-09T04:36:00ZengElsevierPhysics Letters B0370-26932021-09-01820136531A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBarAsli Abdullahi0Matheus Hostert1Silvia Pascoli2Institute for Particle Physics Phenomenology, Department of Physics, Durham University, South Road, Durham DH1 3LE, United Kingdom; Corresponding author.School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA; William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA; Perimeter Institute for Theoretical Physics, Waterloo, ON N2J 2W9, CanadaInstitute for Particle Physics Phenomenology, Department of Physics, Durham University, South Road, Durham DH1 3LE, United KingdomA recent update from MiniBooNE has strengthened the observed 4.8σ 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 ≳2σ 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.http://www.sciencedirect.com/science/article/pii/S0370269321004718
collection DOAJ
language English
format Article
sources DOAJ
author Asli Abdullahi
Matheus Hostert
Silvia Pascoli
spellingShingle Asli Abdullahi
Matheus Hostert
Silvia Pascoli
A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar
Physics Letters B
author_facet Asli Abdullahi
Matheus Hostert
Silvia Pascoli
author_sort Asli Abdullahi
title A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar
title_short A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar
title_full A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar
title_fullStr A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar
title_full_unstemmed A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar
title_sort dark seesaw solution to low energy anomalies: miniboone, the muon (g − 2), and babar
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2021-09-01
description A recent update from MiniBooNE has strengthened the observed 4.8σ 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 ≳2σ 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.
url http://www.sciencedirect.com/science/article/pii/S0370269321004718
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