摘要：We investigate the comparative studies of cosmological baryon asymmetry in different neutrino mass models with and without by considering the three-diagonal
form of Dirac neutrino mass matrices and the three aspects of leptogenesis, unflavoured,
flavoured, and nonthermal. We found that the estimations of any models with are
consistent in all the three stages of calculations of leptogenesis and the results are better than the predictions of any models without which are consistent in a piecemeal
manner with the observational data in all the three stages of leptogenesis calculations. For the normal hierarchy of Type-IA with charged lepton matrix, model with and without predicts inflaton mass required to produce the observed baryon asymmetry to
be  GeV and  GeV, and the corresponding reheating
temperatures are  GeV and  GeV respectively. These
predictions are not in conflict with the gravitino problem which required the reheating
temperature to be below  GeV. And these values apply to the recent discovery of
Higgs boson of mass 125 GeV. One can also have the right order of relic dark matter
abundance only if the reheating temperature is bounded to below  GeV.
