Leptogenesis with left-right domain walls
نویسندگان
چکیده
منابع مشابه
Leptogenesis in Minimal Left-Right Symmetric Models
We analyze lepton asymmetry induced in the decay of right–handed neutrinos in a class of minimal left–right symmetric models. In these models, which assume low energy supersymmetry, the Dirac neutrino mass matrix is proportional to the charged lepton mass matrix. As a result, lepton asymmetry is calculable in terms of 9 parameters, all measurable in low energy neutrino experiments. By solving t...
متن کاملLeptogenesis and low energy observables in left–right symmetric models
In the context of left–right symmetric models we study the connection of leptogenesis and low energy parameters such as neutrinoless double beta decay and leptonic CP violation. Upon imposition of a unitarity constraint, the neutrino parameters are significantly restricted and the Majorana phases are determined within a narrow range, depending on the kind of solar solution. One of the Majorana ...
متن کاملLow Energy Leptogenesis in Left-Right Symmetric Models
We propose a new mechanism for baryogenesis. We study the effective potential of left-right extension of the standard model and show that there can be a first order phase transition at the left-right symmetry breaking and hence (B−L) symmetry breaking scale, which is around TeV in our scenario. As a result, although (B−L) violating interactions are in equilibrium at this scale, enough (B−L) asy...
متن کاملStability and Leptogenesis in Left-Right Symmetric Seesaw Models
In left-right symmetric seesaw models an eight-fold degeneracy among the right-handed neutrino mass matrices is known to exist. We use stability and viability of leptogenesis as criteria in order to discriminate among the degenerate solutions and to partially lift the eight-fold degeneracy. PACS. 98.80.Cq Particle-theory and field-theory models of the early Universe – 14.60.Pq Neutrino mass and...
متن کاملLeptogenesis with Single Right-Handed Neutrino Dominance
We make an analytic and numerical study of leptogenesis in the framework of the (Supersymmetric) Standard Model plus the see-saw mechanism with a U(1) family symmetry and single right-handed neutrino dominance. We show that that there is a decoupling between the low energy neutrino observables and the leptogenesis predictions, but that nevertheless leptogenesis is capable of resolving ambiguiti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pramana
سال: 2004
ISSN: 0304-4289,0973-7111
DOI: 10.1007/bf02705367