English
Related papers

Related papers: Electroweak model of lepton mass and mixing hierar…

200 papers

Two guiding new phenomenological flavor and flavor-electroweak ideas are expounded in this paper: (I) Oppositeness relation between neutrino and Charged Lepton Mass-Degeneracy-Deviation quantities. With inputs from the mass and neutrino…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. M. Lipmanov

The electroweak theory contains too many empirical parameters. Most of them are related to the flavor part of particle physics. In this paper we discuss a relevant simple idea: the complicated system of actual dimensionless, small versus…

General Physics · Physics 2009-01-21 E. M. Lipmanov

Near magnitudes of Dirac particle mass-ratios, mixing hierarchy-quantities and electroweak charges against the background of highly successful flavor-universal one-generation EW theory is a puzzle in need of diverse inclusive research. In…

General Physics · Physics 2009-11-02 E. M. Lipmanov

Unification-type idea of a basic connection between particle mass and charge quantities is in the spirit of string theory. On the level of phenomenology, this idea means raison d'etre for particle flavor since it requires more than one mass…

General Physics · Physics 2011-03-17 E. M. Lipmanov

By analogy with the solution of the classical physics problems achieved not by an extension of the established dynamic and symmetry knowledge but by the emergence of a fundamentally new empirical physical constant h leading to quantum…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. M. Lipmanov

We speculate that the mass spectrum of three neutrinos might have a normal hierarchy as that of three charged leptons or that of three up-type (or down-type) quarks. In this spirit, we propose a novel parametrization of the $3\times 3$…

High Energy Physics - Phenomenology · Physics 2009-11-11 Harald Fritzsch , Zhi-zhong Xing

The standard electroweak model with Dirac neutrinos is extended by way of the principles of electroweak quark-lepton symmetry and weak topological-charge confinement to account for quark-lepton charge relations which, if not accidental, are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ernesto A. Matute

Based on a new approach to quark and lepton masses, where the mass spectra originate in vacuum expectation values of O(3)-flavor 1+5 (gauge singlet) scalars, a neutrino mass matrix of a new type is speculated. The mass matrix is described…

High Energy Physics - Phenomenology · Physics 2009-11-13 Yoshio Koide

Apparent regularities in fermion masses and mixings are often associated with physics at a high flavor scale, especially in the context of discrete flavor symmetries. One of the main reasons for that is that the correct vacuum alignment…

High Energy Physics - Phenomenology · Physics 2013-03-14 Martin Holthausen , Manfred Lindner , Michael A. Schmidt

Starting from the symmetry of lepton flavor democracy, we propose and discuss a simple pattern for the mass generation and flavor mixing of the charged leptons and neutrinos. The three neutrino masses are nearly degenerate, and the flavor…

High Energy Physics - Phenomenology · Physics 2009-10-28 H. Fritzsch , Z. Z Xing

We analyze the structure of quark and lepton mass matrices under the hypothesis that they are determined from a minimum principle applied to a generic potential invariant under the $\left[SU(3)\right]^5\otimes \mathcal O(3)$ flavor…

High Energy Physics - Phenomenology · Physics 2015-06-16 R. Alonso , M. B. Gavela , G. Isidori , L. Maiani

Flavor physics is about particle mass-degeneracy-deviations (DMD) and mixing and especially about hierarchies of those deviations. On the one hand there is no established theory of particle flavor at present; on the other hand there are…

High Energy Physics - Phenomenology · Physics 2008-02-12 E. M. Lipmanov

The absolute neutrino masses and type of neutrino mass hierarchy are among the main problems in neutrino physics. Top-quark mass is another topical problem in particle physics. These problems extend the old puzzle of electron-muon mass…

General Physics · Physics 2008-10-01 E. M. Lipmanov

We analyze the structure of quark and lepton mass matrices under the hypothesis that they are determined from a minimum principle applied to a generic potential invariant under the $\left[U(3)\right]^5\otimes {\mathcal O}(3)$ flavor…

High Energy Physics - Phenomenology · Physics 2014-05-23 Rodrigo Alonso

We introduce a simple flavor symmetry breaking scheme, in which charged lepton masses have a strong hierarchy and neutrino masses are almost degenerate. It is possible to obtain a natural suppression of lepton flavor mixing between the 1st…

High Energy Physics - Phenomenology · Physics 2007-05-23 Harald Fritzsch , Zhi-zhong Xing

Large mixing parameters of neutrino mass eigenstates in the neutrino flavor eigenstates are determined, and interpreted as closely related to the neutrino and charged lepton mass-ratio patterns. The three known seemingly different charged…

High Energy Physics - Phenomenology · Physics 2007-07-10 E. M. Lipmanov

With the start of the LHC, interest in electroweak scale models for the neutrino mass has grown. In this letter, we review two specific models that simultaneously explain neutrino masses and provide a suitable DM candidate. We discuss the…

High Energy Physics - Phenomenology · Physics 2011-11-10 Yasaman Farzan

We apply the discrete S_3 flavor symmetry to both lepton and quark sectors of the standard model extended by introducing one Higgs triplet and realizing the type-II seesaw mechanism for finite neutrino masses. The resultant mass matrices of…

High Energy Physics - Phenomenology · Physics 2014-11-20 Zhi-zhong Xing , Deshan Yang , Shun Zhou

The charged fermion masses of the three generations exhibit the two strong hierarchies m_3 >> m_2 >> m_1. We assume that also neutrino masses satisfy m_{nu 3} > m_{nu 2} > m_{nu 1} and derive the consequences of the hierarchical spectra on…

High Energy Physics - Phenomenology · Physics 2015-02-02 Wolfgang Gregor Hollik , Ulises Jesus Saldana Salazar

We explore predictive flavor models based on subgroups of the standard-model $SU(3)^5$ flavor symmetry. Restricting to products of $SU(3)$, we find that a global $SU(3)^3$ flavor symmetry, broken only by two Yukawa spurions, leads to a…

High Energy Physics - Phenomenology · Physics 2015-05-27 Thomas Appelquist , Yang Bai , Maurizio Piai
‹ Prev 1 2 3 10 Next ›