Running neutrino mass parameters in see-saw scenarios

Jan, 2005
50 pages
Published in:
  • JHEP 03 (2005) 024
e-Print:
Report number:
  • DESY-05-013,
  • TUM-HEP-576-05,
  • SHEP-0504

Citations per year

20052010201520202025051015202530
Abstract:
We systematically analyze quantum corrections in see-saw scenarios, including effects from above the see-saw scales. We derive approximate renormalization group equations for neutrino masses, lepton mixings and CP phases, yielding an analytic understanding and a simple estimate of the size of the effects. Even for hierarchical masses, they often exceed the precision of future experiments. Furthermore, we provide a software package allowing for a convenient numerical renormalization group analysis, with heavy singlets being integrated out successively at their mass thresholds. We also discuss applications to model building and related topics.
  • seesaw model
  • neutrino: mass
  • lepton: mixing angle
  • CP: violation
  • renormalization group: correction
  • grand unified theory
  • mass: threshold
  • lepton: production
  • programming
  • numerical calculations