Deviations from tri-bimaximal mixing
نویسندگان
چکیده
منابع مشابه
Tri-bimaximal Mixing from Cascades
We study fermion mass matrices of the cascade form which naturally lead to the tri-bimaximal generation mixing in the lepton sector. The cascade neutrino matrix predicts a parameter-independent relation among the observables; the neutrino mixing angles and mass squared differences. The relation makes interesting predictions that the atmospheric neutrino mixing angle is close to maximal and the ...
متن کاملTri-bimaximal-Cabibbo Mixing
Recent measurements of the lepton mixing angle θ13 by the Daya Bay and RENO reactor experiments are consistent with the relationship θ13 ≈ θC/ √ 2 where θC is the Cabibbo angle. We propose Tri-bimaximal-Cabibbo (TBC) mixing, in which sin θ13 = sin θC/ √ 2, sin θ23 = 1/ √ 2 and sin θ12 = 1/ √ 3. We show that TBC mixing may arise approximately from Tri-bimaximal, Bi-maximal or Golden Ratio neutri...
متن کاملParametrizing the lepton mixing matrix in terms of deviations from tri-bimaximal mixing
We propose a parametrization of the lepton mixing matrix in terms of an expansion in powers of the deviations of the reactor, solar and atmospheric mixing angles from their tri-bimaximal values. We show that unitarity triangles and neutrino oscillation formulae have a very compact form when expressed in this parametrization, resulting in considerable simplifications when dealing with neutrino p...
متن کاملTri-bimaximal and bimaximal neutrino mixing from discrete sym- metries
— The neutrino oscillation data are well explained by the tri-bimaximal pattern. Recently it has been shown that also the bimaximal pattern could be a very good starting point in order to describe the lepton mixing. In this paper I review both the flavour structures and then I present an explicit example. 1. – The lepton mixing matrix The solar and the atmospheric neutrino anomalies are well ex...
متن کاملOn Deviations from Bimaximal Neutrino Mixing
The PMNS neutrino mixing matrix UPMNS is in general a product of two unitary matrices Ulep and Uν arising from the diagonalization of the charged lepton and neutrino mass matrices, UPMNS = U † lepUν . Assuming that Uν is a bimaximal mixing matrix, we investigate the possible forms of Ulep. We identify three possible generic structures of Ulep, which are compatible with the existing data on neut...
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: Nuclear Physics B - Proceedings Supplements
سال: 2009
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2009.02.078