CPT-odd leptogenesis

Pavel A. Bolokhov, Maxim Pospelov

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We calculate the baryon asymmetry of the Universe resulting from the combination of higher-dimensional Lorentz-noninvariant CPT-odd operators and dimension five operators that induce the majorana mass for neutrinos. The strength of CPT-violating dimension five operators capable of producing the observed value of baryon abundance is directly related to neutrino masses and found to be in the trans-Planckian range (10-24-10-22)GeV-1. Confronting it with observational tests of Lorentz symmetry, we find that this range of Lorentz/CPT violation is strongly disfavored by the combination of the low-energy constraints and astrophysical data.

Original languageEnglish (US)
Article number123517
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number12
StatePublished - 2006
Externally publishedYes


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