CPT-odd leptogenesis

Pavel A. Bolokhov; Maxim E Pospelov

doi:10.1103/PhysRevD.74.123517

CPT-odd leptogenesis

Pavel A. Bolokhov, Maxim E Pospelov

Research output: Contribution to journal › Article › peer-review

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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.

Original language	English (US)
Article number	123517
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	74
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevD.74.123517
State	Published - Dec 1 2006
Externally published	Yes

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10.1103/PhysRevD.74.123517

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AB - 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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CPT-odd leptogenesis

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