Astrophysics > Cosmology and Nongalactic Astrophysics
[Submitted on 17 Jun 2016]
Title:Kinetics of spontaneous baryogenesis in non-stationary background
View PDFAbstract:Generation of the cosmological baryon asymmetry in frameworks of spontaneous baryogenesis is studied in detail. It is shown that the relation between baryonic chemical potential and the time derivative of the (pseudo)Goldstone field essentially depends upon the representation chosen for the fermionic fields with non-zero baryonic number (quarks). Kinetic equation is modified and numerically solved in equilibrium for the case of time dependent external background or finite integration time to be applicable to the case when energy conservation law is formally violated.
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