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Dynamical fermion mass generation is studied in the three-dimensional Thirring model reformulated as a gauge theory by introducing hidden local symmetry. The analysis by use of Schwinger-Dyson equation is shown to exhibit a critical…

High Energy Physics - Phenomenology · Physics 2007-05-23 Taichi Itoh , Yoonbai Kim , Masaki Sugiura , Koichi Yamawaki

We study a hybrid model in which the Technicolor and fundamental heavy scalars live together. We concern extreme case, where electroweak symmetry breaking (EWSB) comes almost entirely from the strong dynamics of Technicolor, but the masses…

High Energy Physics - Phenomenology · Physics 2013-04-16 Vladimir Sauli

The effective potential for a scalar theory with $\lambda\phi^4$ interaction, coupled to a massless fermion through Yukawa interaction is calculated by summing over infinite number of two particle irreducible (2PI) diagrams of two different…

High Energy Physics - Theory · Physics 2026-04-28 Somnath Majumder , Krishnendu Mukherjee

We introduce a simple scenario where, by starting with a five-dimensional SU(3) gauge theory, we end up with several 4-D parallel branes with localized fermions and gauge fields. Similar to the split fermion scenario, the confinement of…

High Energy Physics - Theory · Physics 2009-11-11 Gonzalo A. Palma

For understanding the hierarchies of fermion masses and mixing, we extend the Standard Model gauge group with \( U(1)_X \) and \( Z_2 \) symmetry. The field content of the Standard Model is augmented by three heavy right-handed neutrinos,…

High Energy Physics - Phenomenology · Physics 2025-02-14 Abdul Rahaman Shaikh , Rathin Adhikari

This is the first of two companion papers where we prove that the recently discovered non perturbative mechanism capable of giving mass to elementary fermions, in the presence of weak interactions can also generate a mass for the $W$, and…

High Energy Physics - Phenomenology · Physics 2023-11-07 Giancarlo Rossi

We present an extension of the Standard Model (SM) without supersymmetry, which we use to calculate order of magnitude values for the elements of the mass matrices in the SM. In our model we can fit the 9 quark and lepton masses and 3…

High Energy Physics - Phenomenology · Physics 2009-10-28 C. D. Froggatt , H. B. Nielsen , D. J. Smith

A renormalizable model of electroweak interaction which coincides with Weinberg-Salam model in the gauge boson - fermion sector but does not require the existence of fundamental scalar fields is proposed.

High Energy Physics - Theory · Physics 2007-05-23 A. A. Slavnov

Standard-model fields and their associated electroweak Lagrangian are equivalently expressed in a shared spin basis. The scalar-vector terms are written with scalar-operator components acting on quark-doublet elements, and shown to be…

High Energy Physics - Phenomenology · Physics 2019-04-10 J. Besprosvany , R. Romero

Motivated by a possible interplay between the mechanism of dynamical symmetry breaking and the seesaw mechanism for generating fermion masses, we present a scale-invariant model that extends the gauge symmetry of the Standard Model…

High Energy Physics - Phenomenology · Physics 2022-12-21 Alex G. Dias , Julio Leite , B. L. Sánchez-Vega

Models of Gauge-Higgs unification in extra dimensions offer a very elegant playground where one can study electroweak symmetry breaking. The nicest feature is that gauge symmetry itself protects the Higgs potential from divergences, thus…

High Energy Physics - Phenomenology · Physics 2009-11-11 Giacomo Cacciapaglia , Csaba Csaki , Seong Chan Park

New simple field equations are proposed (Eqs. (5)), unifying Maxwell's equations of the Standard Model electrodynamics (after the electroweak symmetry is spontaneously broken) with the dynamics of cold dark matter. The cold dark matter is…

High Energy Physics - Phenomenology · Physics 2008-08-29 Wojciech Krolikowski

The hierarchy of fermion masses and EW symmetry breaking without elementary Higgs is studied on the basis of strong gauge field distributions governing the EW dynamics. The mechanism of symmetry breaking due to quark bilinears condensation…

High Energy Physics - Phenomenology · Physics 2010-12-06 Yu. A. Simonov

We study the generation of fermion mass in a context where interactions break a discrete chiral symmetry. Then, fermion mass is not protected by a symmetry, no symmetry is broken by the generation of mass, and a vanishing mass no longer…

High Energy Physics - Theory · Physics 2024-09-20 Charlie Cresswell-Hogg , Daniel F. Litim

We apply Bogoliubov compensation principle to the gauge electro-weak interaction to demonstrate a spontaneous generation of anomalous three-boson gauge invariant effective interaction. The non-trivial solution of compensation equations…

High Energy Physics - Phenomenology · Physics 2015-05-28 Boris A. Arbuzov , Ivan V. Zaitsev

We discuss the possibility of breaking the electroweak symmetry in theories with extra dimensions via boundary conditions, without a physical Higgs scalar in the spectrum. In these models the unitarity violation scale can be delayed via the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Csaba Csaki

We combine a pair of independent Weyl fermions to compose a Dirac fermion on the four-dimensional Euclidean lattice. The obtained Dirac operator is antihermitian and does not reproduce anomaly under the usual chiral transformation. To…

High Energy Physics - Lattice · Physics 2007-05-23 Takanori Sugihara

In this paper, the possibility to have new physics is considered at the scale of the electroweak symmetry breaking (EWSB) in a completely new framework. A new non-standard minimal chiral fermion extension of the Standard Model (SM) which…

High Energy Physics - Phenomenology · Physics 2015-09-15 D. A. Camargo

Scalar bosons composed of a pair of chiral fermions in a non-confining potential have an effective Yukawa coupling, $g$, to free external chiral fermions. At large distance a Feynman loop of external fermions generates a scale invariant…

High Energy Physics - Phenomenology · Physics 2022-02-15 Christopher T. Hill

We develop a ${\rm SU}(3)_C\otimes {\rm SU}(3)_L\otimes {\rm U}(1)_X$ model where the number of fermion generations is fixed by cancellation of gauge anomalies, being a type of 3-3-1 model with new charged leptons. Similarly to the…

High Energy Physics - Phenomenology · Physics 2018-04-04 E. R. Barreto , A. G. Dias , J. Leite , C. C. Nishi , R. L. N. Oliveira , W. C. Vieira
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