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A model for electroweak unification of quarks and leptons, in a gauge group $SU_{C}(3)\times SU(4)\times U_{X}(1)$ is constructed. The model requires, three generations of quarks and leptons which are replicas (mirror) of the standard…

High Energy Physics - Phenomenology · Physics 2015-06-03 Fayyazuddin

I examine the possibility that the electroweak interaction breaks itself via the condensation of fermions in large representations of the weak SU(2)_L gauge group.

High Energy Physics - Phenomenology · Physics 2016-09-01 S. Willenbrock

We consider massive deformation of $U(2)$ gauge bosons in a recently developed holonomy formalism and propose a novel electroweak model. The massive gauge bosons arise from massive deformation of spinor momenta, which implies that the mass…

High Energy Physics - Theory · Physics 2013-11-20 Yasuhiro Abe

If the electroweak symmetry is broken by some unspecified strong dynamics, composite fermions may exist with definite transformation properties under SU(2)_L x SU(2)_R/SU(2)_{L+R} and may play a role in giving masses by mixing to all the…

High Energy Physics - Phenomenology · Physics 2010-02-22 Riccardo Barbieri , Gino Isidori , Duccio Pappadopulo

We consider a model for the electroweak interactions based on the assumption that physical particles are singlets under the gauge group SU(2). The concept of complementarity explains why the standard model works with such an extraordinary…

High Energy Physics - Phenomenology · Physics 2009-10-31 Xavier Calmet , Harald Fritzsch

The weak bosons consist of two fermions, bound by a new confining gauge force. The mass scale of this new interaction is determined. At energies below 0.5 TeV the standard electroweak theory is valid. A neutral isoscalar weak boson X must…

High Energy Physics - Phenomenology · Physics 2015-05-28 Harald Fritzsch

We construct a new gauged $U(1)_\ell$ lepton number model which is anomaly-free for each SM generation. The active neutrino masses are radiatively generated with a minimal scalar sector. The phenomenology and collider signals are studied.…

High Energy Physics - Phenomenology · Physics 2018-08-15 We-Fu Chang , John N. Ng

The problem of mass generation is addressed by a Gaussian variational method for the minimal left-right symmetric model of electroweak interactions. Without any scalar bidoublet, the Gaussian effective potential is shown to have a minimum…

High Energy Physics - Phenomenology · Physics 2008-11-26 Fabio Siringo , Luca Marotta

We study the baryon asymmetry of the universe in the supersymmetric standard model (SSM). At the electroweak phase transition, the fermionic partners of the charged SU(2) gauge bosons and Higgs bosons are reflected from or transmitted to…

High Energy Physics - Phenomenology · Physics 2009-10-30 Mayumi Aoki , Noriyuki Oshimo , Akio Sugamoto

It is shown that a chiral SU(2) model can break Lorentz symmetry spontaneously at the Lagrangian level when gauge bosons become massive. This model seems to propose the principles and conceptual foundations leading to a unified picture of…

General Physics · Physics 2017-05-16 Kimihide Nishimura

The strongly coupled lattice gauge models with confined fermion and scalar matter fields, which in a certain phase break dynamically a global chiral symmetry, are reconsidered from the point of view of the existence of heavy fermions. If…

High Energy Physics - Lattice · Physics 2009-10-28 Christoph Frick , Jiri Jersak

We discuss models with a massless fermion and a self-interacting massive scalar field with the Yukawa interaction. The chiral condensate and the fermion mass are calculated analytically. It is shown that the models have a phase transition…

High Energy Physics - Theory · Physics 2015-06-04 V. G. Ksenzov , A. I. Romanov

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

We explore calculable models with low-energy supersymmetry where the flavor hierarchy is generated by quark and lepton compositeness, and where the composites emerge from the same sector that dynamically breaks supersymmetry. The observed…

High Energy Physics - Phenomenology · Physics 2014-11-20 Nathaniel Craig , Rouven Essig , Sebastian Franco , Shamit Kachru , Gonzalo Torroba

We point out that heavy fermion production through the fusion of the longitudinal gauge bosons might be relevant in probing the strongly interacting symmetry breaking sector of the electroweak interactions, by showing the dependence of the…

High Energy Physics - Phenomenology · Physics 2009-10-22 Taekoon Lee

We show that the leading coupling between a shift symmetric inflaton and the Standard Model fermions leads to an induced electroweak symmetry breaking due to particle production during inflation, and as a result, a unique oscillating…

High Energy Physics - Phenomenology · Physics 2020-01-29 Anson Hook , Junwu Huang , Davide Racco

A model of gauge-mediated supersymmetry breaking is constructed in which the low-energy physics depends on a single dynamical scale. Strong coupling dynamics of gauge theories plays an important role, in particular through its effects on…

High Energy Physics - Phenomenology · Physics 2016-08-25 Ann Nelson , Matthew J. Strassler

In the Standard Model of elementary particles the fermions are assumed to be intrinsically massless. Here we propose a new theoretical idea of fermion mass generation (other than by the Higgs mechanism) through the coupling with the vector…

High Energy Physics - Phenomenology · Physics 2025-08-26 Eckart Marsch , Yasuhito Narita

There is current interest in a possible new massive gauge boson $X$ which mixes slightly with the $Z$ boson and accounts for certain anomalies in the LEP data. We show why constraints on models in which the $X$ boson does not couple to the…

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

A model is presented of the leptons, quarks and bosons as non-elementary particles being composed of spinons. They are defined as massless fermions obeying the Weyl equations, but in addition are charged and assumed to have two internal…

General Physics · Physics 2019-08-27 Eckart Marsch