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arXiv · 0907.0099

Unitarity violation in sequential neutrino mixing in a model of extra dimensions

Subhaditya Bhattacharya·Paramita Dey·Biswarup Mukhopadhyaya
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Abstract

We investigate the possibility of unitarity violation in the sequential neutrino mixing matrix in a scenario with extra compact spacelike dimensions. Gauge singlet neutrinos are assumed to propagate in one extra dimension, giving rise to an infinite tower of states in the effective four-dimensional theory. It is shown that this leads to small lepton-number violating entries in the neutrino mass matrix, which can violate unitarity on the order of one per cent.

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Subhaditya Bhattacharya, Paramita Dey, Biswarup Mukhopadhyaya. 2009-07-01. Unitarity violation in sequential neutrino mixing in a model of extra dimensions. https://doi.org/10.1103/physrevd.80.075013

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