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Phys Rev Lett. 2008 Mar 7;100(9):091804. Epub 2008 Mar 7.

Dirac neutrino masses from generalized supersymmetry breaking.

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  • 1Department of Physics, Izmir Institute of Technology, IZTECH, TR35430 Izmir, Turkey.


We demonstrate that Dirac neutrino masses in the experimentally preferred range are generated within supersymmetric gauge extensions of the standard model with a generalized supersymmetry breaking sector. If the superpotential neutrino Yukawa terms are forbidden by the gauge symmetry [such as a U(1)'], sub-eV scale effective Dirac mass terms can arise at tree level from hard supersymmetry breaking Yukawa couplings, or at one loop due to nonanalytic soft supersymmetry breaking trilinear scalar couplings. The radiative neutrino magnetic and electric dipole moments vanish at one-loop order.

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