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We investigate the production and the decays of pseudo-Goldstone bosons (PGBs) predicted by technicolor theories with the GIM mechanism (TC-GIM). The TC-GIM models contain exotic fermion families that do not interact under weak $SU(2)$, but…

High Energy Physics - Phenomenology · Physics 2008-12-18 Witold Skiba

We consider a supersymmetric QCD with soft supersymmetry breaking terms as the dynamics for the electroweak symmetry breaking. We find various advantages compared to the non-supersymmetric models, such as a natural incorporation of the…

High Energy Physics - Phenomenology · Physics 2011-01-28 Hiraku Fukushima , Ryuichiro Kitano , Masahiro Yamaguchi

The case of a coupling between dark energy and matter (Coupled Quintessence) or gravity (Extended Quintessence) has recently attracted a deep interest and has been widely investigated both in the Einstein and in the Jordan frames (EF, JF),…

Astrophysics · Physics 2008-12-18 Valeria Pettorino , Carlo Baccigalupi

The review of chiral effective theory (CET) is given. CET is based on quantum chromodynamics and describes the processes of strong interaction at low energies. It is proved, that CET comes as a consequence of the spontaneous violation of…

High Energy Physics - Phenomenology · Physics 2010-12-17 B. L. Ioffe

In this paper, we explore the cosmological implications of interacting dark energy model in a torsion based gravity namely $f(T)$. Assuming dark energy interacts with dark matter and radiation components, we examine the stability of this…

General Physics · Physics 2012-03-27 Mubasher Jamil , D. Momeni , Ratbay Myrzakulov

Simulations of laser-induced electron dynamics in a molecular system are performed using time-dependent (TD) equation-of-motion (EOM) coupled-cluster (CC) theory. The target system has been chosen to highlight potential shortcomings of…

Chemical Physics · Physics 2023-08-09 Stephen H. Yuwono , Brandon C. Cooper , Tianyuan Zhang , Xiaosong Li , A. Eugene DePrince

We review briefly the properties of a mixture of mutually interacting bosons (bound electron pairs) and itinerant fermions on a lattice (the boson-fermion model). The calculations of the superconducting phase transition temperature…

Superconductivity · Physics 2019-12-12 R. Micnas

In extended technicolor (ETC) theories, while the sideways ETC boson exchange decreases the width $\Gamma_b \equiv \Gamma (Z\rightarrow b \bar{b})$, the flavor-diagonal ETC boson exchange tends to increase it, and the ETC-corrected $R_b…

High Energy Physics - Phenomenology · Physics 2009-10-28 Guo-Hong Wu

Scalar composite boson masses have been computed in QCD and Technicolor theories with the help of the homogeneous Bethe-Salpeter equation (BSE), resulting in a scalar mass that is twice the dynamically generated fermion or technifermion…

High Energy Physics - Phenomenology · Physics 2009-11-06 A. Doff , A. A. Natale , P. S. Rodrigues da Silva

A nonperturbative Schwinger-Dyson analysis of mass generation is presented for a non-Hermitian PT-symmetric field theory in four dimensions of an axion coupled to a Dirac fermion.The model is motivated by phenomenological considerations.The…

High Energy Physics - Phenomenology · Physics 2023-01-04 N. E. Mavromatos , Sarben Sarkar , A. Soto

The implementation of the Schwinger mechanism endows gluons with a nonperturbative mass through the formation of special massless poles in the fundamental QCD vertices; due to their longitudinal character, these poles do not cause…

High Energy Physics - Phenomenology · Physics 2023-06-29 A. C. Aguilar , M. N. Ferreira , B. M. Oliveira , J. Papavassiliou , L. R. Santos

We provide a complete extension of Minimal Walking Technicolor able to account for the standard model fermion masses. The model is supersymmetric at energies greater or equal to the technicolor compositeness scale. We integrate out, at the…

High Energy Physics - Phenomenology · Physics 2015-06-03 Matti Antola , Stefano Di Chiara , Francesco Sannino , Kimmo Tuominen

We study diagonal and transition quark dipole operators in a class of extended technicolor (ETC) models, taking account of the multiscale nature of the ETC gauge symmetry breaking and of the mixing among ETC interaction eigenstates. Because…

High Energy Physics - Phenomenology · Physics 2009-11-10 Thomas Appelquist , Maurizio Piai , Robert Shrock

We consider a gauge theory of vector fields in $3d$ Minkowski space. At the free level, the dynamical variables are subjected to the extended Chern-Simons (ECS) equations with higher derivatives. If the color index takes $n$ values, the…

High Energy Physics - Theory · Physics 2021-05-05 D. S. Kaparulin , S. L. Lyakhovich , O. D. Nosyrev

The motivations for studying dynamical scenarios of electroweak and flavor symmetry breaking are reviewed and the latest ideas, especially topcolor-assisted technicolor, are summarized. Technicolor's observable low-energy signatures are…

High Energy Physics - Phenomenology · Physics 2009-10-31 Kenneth Lane

This paper presents an investigation of cosmological dynamics of tachyon fluid coupled to varyingmass dark matter particles in the background of spatially flat FLRW universe. The mechanism of varying mass particles scenario assumes the mass…

General Relativity and Quantum Cosmology · Physics 2025-07-22 Goutam Mandal , Sudip Mishra , Abdulla Al Mamon , Sujay Kr. Biswas

Quark and lepton masses and mixings are considered in the framework of the microscopic model. The most general ansatz for the interactions among tetrons leads to a Hamiltonian $H_T$ involving Dzyaloshinskii-Moriya (DM), Heisenberg and…

High Energy Physics - Phenomenology · Physics 2025-11-05 Bodo Lampe

Since the pioneering work of Eichten and Lane it has been known that the scale of the interactions responsible for the generation of the strange-quark mass in extended technicolor theories must, absent any "GIM-like" mechanism for…

High Energy Physics - Lattice · Physics 2014-11-21 R. Sekhar Chivukula , Elizabeth H. Simmons

Transition--metal dichalcogenides (TMDs) uniquely combine topological electronic states realized without external magnetic fields with a strong optical response arising from long--lived excitons. Motivated by this confluence, we investigate…

Strongly Correlated Electrons · Physics 2026-04-28 Tianhong Lu , Luiz H. Santos

Pseudo-Goldstone boson contributions to $t\bar{t}$ production rates in technicolor models with and without topcolor at the $\sqrt{s}=0.5 and 1.5$ TeV photon colliders and hadron colliders are reviewed. For reasonable ranges of the…

High Energy Physics - Phenomenology · Physics 2019-08-17 Hong-Yi Zhou , Yu-Ping Kuang , Chong-Xing Yue , Hua Wang , Gong-Ru Lu