Heavy Majorana Leptons and Cosmological Baryon Excess

Sep, 1980
22 pages
Published in:
  • Phys.Rev.D 23 (1981) 2048
Report number:
  • TU-80-211

Citations per year

1981199019992008201702468
Abstract: (APS)
Cosmological baryon excess is used to probe how the left-right symmetry should be broken in a basically symmetric grand unified theory. In the SO(10) model, the contribution from an intermediate state containing the chiral partner of a light ordinary neutrino cancels much of the usual baryon excess produced by a heavy-Higgs-boson decay unless the partner's mass is ≳1010 GeV. A mechanism of soft CP violation is also mentioned.
  • BARYON: ASYMMETRY
  • ASTROPHYSICS
  • GAUGE FIELD THEORY: SO(10)
  • UNIFIED FIELD THEORY
  • WEAK INTERACTION
  • ELECTROMAGNETIC INTERACTION
  • STRONG INTERACTION
  • HEAVY LEPTON: MAJORANA
  • SYMMETRY: CHIRAL
  • SYMMETRY BREAKING