## “School of Physics”

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Paper   IPM / P / 12539
School of Physics
Title:   Inflato-Natural Leptogenesis: Leptogenesis in Chromo-Natural Inflation and Gauge-Flation
Author(s):
 1 M. Noorbala 2 M.M. Sheikh-Jabbari
Status:   Preprint
Journal:
Year:  2012
Supported by:  IPM
Abstract:
In a scenario of leptogenesis, the gravi-leptogensis, was introduced. In this scenario the lepton asymmetry is created by the gravitational chiral anomaly within the standard model of particle physics, during inflation, for models of inflation driven by pseudoscalar field(s). In the gravileptogensis scenario of [1], however, the pseudoscalar driven model of inflation was not specifi ed. In this work we show that the inflation model can be successfully chosen to be the chromo-natural inflation or the gauge-flation.

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