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Updated: Jul 6, 2026
07:46
Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Dirac neutrino masses from generalized supersymmetry breaking
Durmuş A Demir1, Lisa L Everett, Paul Langacker
1Department of Physics, Izmir Institute of Technology, IZTECH, TR35430 Izmir, Turkey. durmus.demir@desy.de
Physical Review Letters
|March 21, 2008
Summary
Supersymmetric gauge extensions generate Dirac neutrino masses within experimental ranges. This occurs via specific supersymmetry breaking mechanisms, even when standard neutrino couplings are forbidden, leading to vanishing radiative dipole moments.
Area of Science:
- Particle Physics
- Cosmology
- Beyond Standard Model Physics
Background:
- Neutrino masses present a puzzle beyond the Standard Model.
- Supersymmetry (SUSY) offers potential solutions to Standard Model problems.
- Understanding neutrino mass generation is crucial for particle physics and cosmology.
Purpose of the Study:
- To demonstrate Dirac neutrino mass generation within supersymmetric gauge extensions.
- To explore mechanisms for generating sub-eV scale Dirac neutrino masses.
- To investigate the implications for neutrino dipole moments.
Main Methods:
- Utilizing supersymmetric gauge extensions of the Standard Model.
- Incorporating a generalized supersymmetry breaking sector.
- Analyzing tree-level and one-loop contributions to neutrino mass.
Main Results:
- Dirac neutrino masses are generated in the experimentally preferred range.
- Sub-eV scale effective Dirac mass terms arise from specific Yukawa couplings.
- Radiative neutrino magnetic and electric dipole moments are shown to vanish at one-loop order.
Conclusions:
- Supersymmetric models with generalized breaking sectors can naturally explain Dirac neutrino masses.
- The proposed mechanisms circumvent constraints from forbidden superpotential Yukawa terms.
- The vanishing dipole moments provide testable predictions for future experiments.
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