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arXiv · hep-ph/0210131

A new mechanism for a naturally small Dirac neutrino mass

P. Q. Hung
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Abstract

A mechanism is proposed in which a right-handed neutrino zero mode and a right-handed charged lepton zero mode can be localized at the same place along an extra compact dimension while having markedly different spreads in their wave functions: a relatively narrow one for the neutrino and a rather broad one for the charged lepton. In their overlaps with the wave function for the left-handed zero modes, this mechanism could produce a natural large hierarchy in the effective Yukawa couplings in four dimensions, and hence a large disparity in masses.

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P. Q. Hung. 2002-10-08. A new mechanism for a naturally small Dirac neutrino mass. https://doi.org/10.1103/physrevd.67.095011

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