Yukawa textures and anomalies
نویسندگان
چکیده
منابع مشابه
Leptogenesis and Yukawa textures
We study a set of textures giving rise to correct masses and mixings of the charged fermions in the context of leptogenesis. The Dirac neutrino texture pattern is assumed to be identical with the up quark texture. The heavy Majonana neutrino mass matrix is obtained by inverting the type-I see-saw formula and using the neutrino masses and mixings required by the solar and atmospheric neutrino os...
متن کاملLeptogenesis, Yukawa Textures and Weak Basis Invariants
We show that a large class of sets of leptonic texture zeros considered in the literature imply the vanishing of certain CP-odd weak-basis invariants. These invariant conditions enable one to recognize a flavour model corresponding to a set of texture zeros, when written in an arbitrary weak-basis where the zeros are not manifest. We also analyse the rôle of texture zeros in allowing for a conn...
متن کاملAnomaly Mediation, Yukawa Textures, and Neutrino Masses
We describe some recent developments in Anomaly Mediated Supersymmetry Breaking. We focus on resolutions of the tachyonic slepton puzzle based on extending the MSSM by an anomaly free U1 symmetry, so that exact RG invariance is preserved.
متن کاملYukawa Textures, New Physics and Nondecoupling
We point out that New Physics can play an important rôle in rescuing some of the Yukawa texture zero ansätze which would otherwise be eliminated by the recent, more precise measurements of VCKM . As an example, a detailed analysis of a four texture zero ansatz is presented, showing how the presence of an isosinglet vector-like quark which mixes with standard quarks, can render viable this Yukaw...
متن کاملYukawa Textures and the mu - term
We show how with an anomaly-free U 1 , simple assumptions concerning the origin of Yukawa textures and the Higgs µ-term lead to the prediction of a new physics scale of
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1995
ISSN: 0370-2693
DOI: 10.1016/0370-2693(95)00297-x