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The Standard Model of electroweak interactions is shown to include a gauge theory for the observed scalar and pseudoscalar mesons. This is done by exploiting the consequences of embedding the SU(2)left X U(1) group into the chiral group of…

High Energy Physics - Phenomenology · Physics 2009-10-28 B. Machet

A new dynamical symmetry breaking model of electroweak interactions is proposed based on interacting fermions. Two fermions of different SU_{L}(2) representations form a symmetry breaking condensate and generate the lepton and quark masses.…

High Energy Physics - Phenomenology · Physics 2009-01-07 G. Cynolter , E. Lendvai , G. Pocsik

The standard model for electroweak interactions uses the concepts of weak hypercharge and local gauge invariance of the Lagrangian density under the gauge group SU(2) x U(1). Taylor has remarked that U(1), being a multiply-connected group,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mohammad Saleem , Muhammad Ali , Shaukat Ali

The nonlinear SU(2) electroweak model is used to explain the absence of the right-handed neutrino in weak interactions. Two covariant eigenvalue constraints which affect the transformation lead to two classes of right-handed leptons, and…

High Energy Physics - Phenomenology · Physics 2010-09-28 Bill Dalton

We consider a gauge model based on $SU(3)\otimes U(1)$ symmetry in which the lepton number is violated explicitly by charged scalar and gauge bosons, including a vector field with double electric charge. Although there exist in the…

High Energy Physics - Phenomenology · Physics 2009-07-28 F. Pisano , V. Pleitez

We present a detailed analysis of a class of extensions to the SM Gauge chiral symmetry $SU(3)_{C}\times SU(3)_{L}\times U(1)_{X}$ (331 model), where the neutrino electroweak interaction with matter via charged and neutral current is…

High Energy Physics - Phenomenology · Physics 2011-08-29 M. Medina , P. C. de Holanda

We consider an $SU(3)_L\otimes U(1)_N$ model for the electroweak interactions which includes extra charged leptons which do not mix with the known leptons. These new leptons couple to $Z^0$ only through vector currents. We consider…

High Energy Physics - Phenomenology · Physics 2009-10-22 V. Pleitez , M. D. Tonasse

We consider a dark sector model containing stable fermions charged under an unbroken $U(1)$ gauge interaction, with a massless dark photon as force carrier, and interacting with ordinary matter via scalar messengers. We study its early…

High Energy Physics - Phenomenology · Physics 2020-10-14 Jan Tristram Acuña , Marco Fabbrichesi , Piero Ullio

The weak bosons, leptons and quarks are considered as composite particles. The interaction of the constituents is a confining gauge interaction. The standard electroweak model is a low energy approximation. The mixing of the neutral weak…

High Energy Physics - Phenomenology · Physics 2010-11-05 Harald Fritzsch

The $super$-$weak$ force combines three simple extensions of the Standard Model, one in gauge sector, one in fermion sector and one in scalar sector. Each of these extensions are well motivated by their rich phenomenology. Combined to a…

High Energy Physics - Phenomenology · Physics 2021-11-16 Timo J. Kärkkäinen , Zoltán Trócsányi

I study, in the leptonic sector, the role of the $SU(2)_V$ custodial symmetry $\ti{\cal G}$ which was shown in ref. [1] to control the quantization of the electric charge in the $J=0$ mesonic sector. The electroweak theory is considered,…

High Energy Physics - Phenomenology · Physics 2015-06-25 B. Machet

Fermion masses and mixing angles including that of neutrinos are studied in a model with symmetry group SUSY $SO(10)\times \Delta (48) \times U(1)$. Universality of Yukawa coupling of superfields is assumed. The resulting texture of mass…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. C. Chou , Y. L. Wu

In this paper, an electroweak model with massive neutrinos is proposed. The symmetry of the model is $SU(2)_L \times U(1)_Y \times U(1)_M$. Because of the mixing of neutrinos, the conversion of one lepton type to another is possible, but…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ning Wu

The low and higher energy limits of the Electroweak Model are obtained from first principles of gauge theory. Both limits are given by the same contraction of the gauge group, but for the different consistent rescalings of the field space.…

General Physics · Physics 2015-06-23 Nikolay A. Gromov

We construct a full left-right model for the electroweak interactions based on the $SU(3)_{L}\otimes SU(3)_{R}\otimes U(1)_{X}$ gauge symmetry. The fermion content of the model is such that anomaly cancellation restricts the number of…

High Energy Physics - Phenomenology · Physics 2014-11-20 Alex G. Dias , C. A. de S. Pires , P. S. Rodrigues da Silva

The super-weak force is a minimal, anomaly-free U(1) extension of the standard model (SM), designed to explain the origin of (i) neutrino masses and mixing matrix elements, (ii) dark matter, (iii) cosmic inflation, (iv) stabilization of the…

High Energy Physics - Phenomenology · Physics 2022-03-22 Timo J. Kärkkäinen , Zoltán Trócsányi

By considering its generalization to composite J=0 mesons proposed in a previous work [1], I show how and why a chiral extension of the Glashow-Salam-Weinberg standard model of electroweak interactions calls, there, for right-handed charged…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. Machet

A dynamical symmetry breaking model of electroweak interactions is investigated based on strongly interacting fermions. Vector-like fermions of different representations of the weak SU(2) form a symmetry breaking condensate and generate the…

High Energy Physics - Phenomenology · Physics 2015-03-18 G. Cynolter , E. Lendvai

We derive empirical relationships among elementary fermion masses based on relatively simple exponential formulae involving quantum numbers for the electromagnetic and strong interactions, with a weak correction factor motivated by a simple…

General Physics · Physics 2009-02-25 Alan Breakstone

After some general remarks about SU_L(4) electroweak unification, the model is extended to SU_L(4)xU_X(1) to accomodate fractionally charged quarks. The unification scale is expected to be in TeV region. A right-handed Majorana neutrino…

High Energy Physics - Phenomenology · Physics 2008-11-26 Fayyazuddin , Riazuddin
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