Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism

Abstract We discuss the leptonic flavor structure generated by a brane shifted extra dimensional seesaw model with a single right handed neutrino in the bulk. In contrast to previous works, no unitarity approximation for the $$3 \times 3$$ 3×3 submatrix has been employed. This allows to study phenom...

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Main Authors: Mathias Becker, Heinrich Päs
Format: Article
Language:English
Published: SpringerOpen 2018-03-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-018-5756-6
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author Mathias Becker
Heinrich Päs
author_facet Mathias Becker
Heinrich Päs
author_sort Mathias Becker
collection DOAJ
description Abstract We discuss the leptonic flavor structure generated by a brane shifted extra dimensional seesaw model with a single right handed neutrino in the bulk. In contrast to previous works, no unitarity approximation for the $$3 \times 3$$ 3×3 submatrix has been employed. This allows to study phenomenological signatures such as lepton flavor violating decays. A strong prediction of the model, assuming CP conservation, are the ratios of flavor violating charged lepton decay and Z decay branching ratios which are correlated with the neutrino mixing angles and the neutrino mass hierarchy. Furthermore, it is possible to obtain branching ratios for $$\mu \rightarrow e \gamma $$ μ→eγ close to the experimental bounds even with Yukawa couplings of order one.
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spelling doaj.art-752f4fa3170345789aeaf64fa1dc47782022-12-22T03:02:04ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-03-0178311410.1140/epjc/s10052-018-5756-6Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanismMathias Becker0Heinrich Päs1Fakultät für Physik, Technische Universität DortmundFakultät für Physik, Technische Universität DortmundAbstract We discuss the leptonic flavor structure generated by a brane shifted extra dimensional seesaw model with a single right handed neutrino in the bulk. In contrast to previous works, no unitarity approximation for the $$3 \times 3$$ 3×3 submatrix has been employed. This allows to study phenomenological signatures such as lepton flavor violating decays. A strong prediction of the model, assuming CP conservation, are the ratios of flavor violating charged lepton decay and Z decay branching ratios which are correlated with the neutrino mixing angles and the neutrino mass hierarchy. Furthermore, it is possible to obtain branching ratios for $$\mu \rightarrow e \gamma $$ μ→eγ close to the experimental bounds even with Yukawa couplings of order one.http://link.springer.com/article/10.1140/epjc/s10052-018-5756-6
spellingShingle Mathias Becker
Heinrich Päs
Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism
European Physical Journal C: Particles and Fields
title Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism
title_full Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism
title_fullStr Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism
title_full_unstemmed Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism
title_short Leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism
title_sort leptonic flavor structure in the brane shifted extra dimensional seesaw mechanism
url http://link.springer.com/article/10.1140/epjc/s10052-018-5756-6
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AT heinrichpas leptonicflavorstructureinthebraneshiftedextradimensionalseesawmechanism