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Gravitational baryogenesis in Gauss-Bonnet braneworld cosmology
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Gravitational baryogenesis in Gauss-Bonnet braneworld cosmology
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The mechanism of gravitational baryogenesis, based on the CPT-violating gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current, is investigated in the context of the Gauss-Bonnet braneworld cosmology. We study the constraints on the fundamental five-dimensional gravity scale, the effective scale of B-violation and the decoupling temperature, for the above mechanism to generate an acceptable baryon asymmetry during the radiation-dominated era. The scenario of gravitational leptogenesis, where the lepton-number violating interactions are associated with the neutrino mass seesaw operator, is also considered.
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Cited by 1 Pith paper
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Gravitational Baryogenesis in Rainbow Gauss-Bonnet gravity
Gravitational baryogenesis in a rainbow-gravity-corrected 4D Gauss-Bonnet model can in principle produce Y_B ~ 10^-10 during radiation domination, but only by fitting seven free parameters and using the effective theo...
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