Please use this identifier to cite or link to this item:
|Title:||Deviations from tribimaximal neutrino mixing in the type-II seesaw model and leptogenesis|
|Authors:||Chan, A.H. |
|Citation:||Chan, A.H., Fritzsch, H., Luo, S., Xing, Z.-Z. (2007-10-18). Deviations from tribimaximal neutrino mixing in the type-II seesaw model and leptogenesis. Physical Review D - Particles, Fields, Gravitation and Cosmology 76 (7) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevD.76.073009|
|Abstract:||Current experimental data allow the zero value for one neutrino mass, either m1=0 or m3=0. This observation implies that a realistic neutrino mass texture can be established by starting from the limit (a) m1=m2=0 and m3≠0 or (b) m1=m2≠0 and m3=0. In both cases, we may introduce a particular perturbation which ensures the resultant neutrino mixing matrix to be the tribimaximal mixing pattern or its viable variations with all entries being formed from small integers and their square roots. We find that it is natural to incorporate this kind of neutrino mass matrix in the minimal type-II seesaw model with only one heavy right-handed Majorana neutrino N in addition to the SU(2)L Higgs triplet ΔL. We show that it is possible to account for the cosmological baryon number asymmetry in the m3=0 case via thermal leptogenesis, in which the one-loop vertex correction to N decays is mediated by ΔL and the CP-violating asymmetry of N decays is attributed to the electron flavor. © 2007 The American Physical Society.|
|Source Title:||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 15, 2019
WEB OF SCIENCETM
checked on Jan 7, 2019
checked on Jan 11, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.