Neutrino Yukawa textures within type-I see-saw
作者： Biswajit Adhikary , Probir Roy
DOI: 10.1155/2013/324756
关键词:
摘要: We review neutrino Yukawa textures with zeros within the framework of type-I seesaw three heavy right chiral neutrinos and in basis where latter charged leptons are mass diagonal. An assumed nonvanishing every ultralight observed nondecoupling any generation allow a maximum four coupling matrix family space. show that requirement an exact symmetry, coupled observational constraints, reduces seventy-two allowed such to only corresponding just two different forms light matrix: one inverted other normal ordering. The masses Majorana phases predicted definite ranges laboratory cosmological inputs. Within same framework, we also study fewer number zeros, but symmetry. further formulate detailed scheme explicit breaking symmetry terms small parameters for zero textures. sizable mixing between first third generations is shown follow suitable choice these parameters.
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