CPT-odd Leptogenesis

Details CPT-odd Leptogenesis CPT-odd Leptogenesis

2006-10-06

arxiv.org/abs/hep-ph/0610070v2

Phys.Rev.D74:123517,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 4 figures

Scientific paper

10.1103/PhysRevD.74.123517

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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