Leptogenesis consequences of TM1 mixing and μ-τ reflection symmetry in minimal seesaw model with pseudo-Dirac right-handed neutrinos

In this paper we have studied the realizations of the popular TM1 neutrino mixing and neutrino μ-τ reflection symmetry (which are well motivated from the neutrino oscillation data and lead to interesting phenomenological consequences) in the minimal seesaw model with a Dirac pair of right-handed neutrinos (with equal masses but opposite parities), and their consequences for leptogenesis. In order to realize the low-scale resonant leptogenesis scenario, we have considered two possible ways of generating the tiny mass splitting between the two right-handed neutrinos: one way is to modify their Majorana mass matrix to a form as shown in Eq.(25); the other way is to consider the renormalization-group corrections for their masses. For the μ-τ reflection symmetry, in order for leptogenesis to work, we have further considered the flavor-dependent conversion efficiencies from the lepton asymmetry to the baryon asymmetry during the sphaleron processes, and its breaking via the renormalization-group corrections.