A new mechanism for a naturally small Dirac neutrino mass

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.

arXiv comment6 pages (2 with figures), twocolumn format

References in corpus (9)

• Evidence for oscillation of atmospheric neutrinos
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Hierarchies without Symmetries from Extra Dimensions
• Tau Neutrinos Favored over Sterile Neutrinos in Atmospheric Muon Neutrino Oscillations
• Neutrino Masses from Large Extra Dimensions
• Light Neutrinos without Heavy Mass Scales: A Higher-Dimensional Seesaw Mechanism
• Chiral fermions, orbifolds, scalars and fat branes
• Almost Pure Phase Mass Matrices from Six Dimensions
• A Model of Quark and Lepton Masses I: The Neutrino Sector

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