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arXiv · hep-ph/0610070

CPT-odd Leptogenesis

Pavel A. Bolokhov·Maxim Pospelov
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Abstract

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.

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Pavel A. Bolokhov, Maxim Pospelov. 2006-10-10. CPT-odd Leptogenesis. https://doi.org/10.1103/physrevd.74.123517

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