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Neutrino Masses in R-parity Violating Supersymmetric Models.


DE2004826584

Publication Date 2003
Personal Author Grossman, Y.; Rakshit, S.
Page Count 22
Abstract We study neutrino masses and mixing in R-parity violating supersymmetric models with generic soft supersymmetry breaking terms. Neutrinos acquire masses from various sources: Tree level neutrino--neutralino mixing and loop effects proportional to bilinear and/or trilinear R-parity violating parameters. Each of these contributions is controlled by different parameters and have different suppression or enhancement factors which we identified. Within an Abelian horizontal symmetry framework these factors are related and specific predictions can be made. We found that the main contributions to the neutrino masses are from the tree level and the bilinear loops and that the observed neutrino data can be accommodated once mild fine-tuning is allowed.
Keywords
  • Neutrinos
  • Mass
  • Supersymmetry
  • Symmetry
  • Parameters
  • Loops
  • Models
Source Agency
  • Technical Information Center Oak Ridge Tennessee
Corporate Authors Stanford Linear Accelerator Center, CA.; California Univ., Santa Cruz. Santa Cruz Inst. for Particle Physics.; Technion - Israel Inst. of Tech., Haifa. Dept. of Physics.; Department of Energy, Washington, DC.
Supplemental Notes Prepared in cooperation with California Univ., Santa Cruz. Santa Cruz Inst. for Particle Physics. and Technion - Israel Inst. of Tech., Haifa. Dept. of Physics. Sponsored by Department of Energy, Washington, DC.
Document Type Technical Report
NTIS Issue Number 200510
Neutrino Masses in R-parity Violating Supersymmetric Models.
Neutrino Masses in R-parity Violating Supersymmetric Models.
DE2004826584

  • Neutrinos
  • Mass
  • Supersymmetry
  • Symmetry
  • Parameters
  • Loops
  • Models
  • Technical Information Center Oak Ridge Tennessee
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