Heavy Majorana leptons and cosmological baryon excess

Details Heavy Majorana leptons and cosmological baryon excess Heavy Majorana leptons and cosmological baryon excess

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981phrvd..23.2048y&link_type=abstract

Physical Review D (Particles and Fields), Volume 23, Issue 9, 1 May 1981, pp.2048-2054

Mathematics

Logic

16

Scientific paper

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.

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