Loop-induced neutrino non-standard interactions

Abstract Non-Standard Interactions (NSI) of neutrinos may originate from models in which new particles interact with neutrinos. In scalar extensions of the SM, the typical approach to obtain NSI requires Fierz transformations and charged Higgses, which suffer from strong constraints from collider se...

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Main Authors: Ingolf Bischer, Werner Rodejohann, Xun-Jie Xu
Format: Article
Language:English
Published: SpringerOpen 2018-10-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP10(2018)096
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author Ingolf Bischer
Werner Rodejohann
Xun-Jie Xu
author_facet Ingolf Bischer
Werner Rodejohann
Xun-Jie Xu
author_sort Ingolf Bischer
collection DOAJ
description Abstract Non-Standard Interactions (NSI) of neutrinos may originate from models in which new particles interact with neutrinos. In scalar extensions of the SM, the typical approach to obtain NSI requires Fierz transformations and charged Higgses, which suffer from strong constraints from collider searches or charged lepton flavor violation processes. We propose here an alternative approach to generate NSI, namely via loop processes. We show that such loop-induced NSI from secret neutrino interactions can reach sizes of O $$ \mathcal{O} $$ (0.1 ∼ 1) compared to standard Fermi interaction. This approach can also give rise to neutrino-quark NSI.
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spelling doaj.art-7e3c97c8be2d4e5ba8555c3bb3b46b372022-12-22T00:21:31ZengSpringerOpenJournal of High Energy Physics1029-84792018-10-0120181012710.1007/JHEP10(2018)096Loop-induced neutrino non-standard interactionsIngolf Bischer0Werner Rodejohann1Xun-Jie Xu2Max-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikAbstract Non-Standard Interactions (NSI) of neutrinos may originate from models in which new particles interact with neutrinos. In scalar extensions of the SM, the typical approach to obtain NSI requires Fierz transformations and charged Higgses, which suffer from strong constraints from collider searches or charged lepton flavor violation processes. We propose here an alternative approach to generate NSI, namely via loop processes. We show that such loop-induced NSI from secret neutrino interactions can reach sizes of O $$ \mathcal{O} $$ (0.1 ∼ 1) compared to standard Fermi interaction. This approach can also give rise to neutrino-quark NSI.http://link.springer.com/article/10.1007/JHEP10(2018)096Beyond Standard ModelNeutrino Physics
spellingShingle Ingolf Bischer
Werner Rodejohann
Xun-Jie Xu
Loop-induced neutrino non-standard interactions
Journal of High Energy Physics
Beyond Standard Model
Neutrino Physics
title Loop-induced neutrino non-standard interactions
title_full Loop-induced neutrino non-standard interactions
title_fullStr Loop-induced neutrino non-standard interactions
title_full_unstemmed Loop-induced neutrino non-standard interactions
title_short Loop-induced neutrino non-standard interactions
title_sort loop induced neutrino non standard interactions
topic Beyond Standard Model
Neutrino Physics
url http://link.springer.com/article/10.1007/JHEP10(2018)096
work_keys_str_mv AT ingolfbischer loopinducedneutrinononstandardinteractions
AT wernerrodejohann loopinducedneutrinononstandardinteractions
AT xunjiexu loopinducedneutrinononstandardinteractions