Gravitational leptogenesis in teleparallel and symmetric teleparallel
  gravities
  In this paper, we consider the possibilities of generating baryon number
asymmetry in thermal equilibrium within the frameworks of teleparallel and
symmetric teleparallel gravities. Through the derivative couplings of the
torsion scalar or the non-metricity scalar to baryons, the baryon number
asymmetry is indeed produced in the radiation dominated epoch. For
gravitational baryogenesis mechanisms in these two frameworks, the produced
baryon-to-entropy ratio is too small to be consistent with observations. But
the gravitational leptogenesis models within both frameworks have the
possibilities to interpret the observed baryon-antibaryon asymmetry.
