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We explore, by Monte Carlo and Mean Field methods, the five--dimensional SU(2) adjoint Higgs model. We allow for the possibility of different couplings along one direction, describing the so--called anisotropic model. This study is…

High Energy Physics - Lattice · Physics 2009-11-07 P. Dimopoulos , K. Farakos , G. Koutsoumbas

The phase diagram of five-dimensional SU(2) gauge theories is explored using Monte Carlo simulations of the theory discretized on a Euclidean lattice using the Wilson plaquette action and periodic boundary conditions. We simulate…

High Energy Physics - Lattice · Physics 2015-05-30 Francesco Knechtli , Magdalena Luz , Antonio Rago

We present a non-perturbative model of Gauge-Higgs Unification. We consider a five-dimensional pure SU(2) gauge theory with orbifold boundary conditions along the fifth dimension, such that the symmetry is reduced to U(1) at the fixed…

High Energy Physics - Lattice · Physics 2015-06-12 Nikos Irges , Francesco Knechtli , Kyoko Yoneyama

We study the viability of five-dimensional gauge theories as candidates for the origin of the Higgs field and its mechanism for spontaneous symmetry breaking. Within the framework of lattice field theory, we consider the simplest model of…

High Energy Physics - Lattice · Physics 2015-10-28 Maurizio Alberti , Nikos Irges , Francesco Knechtli , Graham Moir

We study the phase diagram of five-dimensional SU(2) gauge theories on anisotropic lattices with periodic boundary conditions. We locate a line of first order bulk phase transitions and second order phase transitions related to breaking of…

High Energy Physics - Lattice · Physics 2011-11-04 Francesco Knechtli , Antonio Rago

We present four-dimensional gauge theories that describe physics on five-dimensional curved (warped) backgrounds, which includes bulk fields with various spins (vectors, spinors, and scalars). Field theory on the AdS$_5$ geometry is…

High Energy Physics - Phenomenology · Physics 2014-11-17 Hiroyuki Abe , Tatsuo Kobayashi , Nobuhito Maru , Koichi Yoshioka

We study dynamical self-localization of gauge theories in higher dimensions. Specifically, we consider a 5D $U(1)$ gauge theory in the linear dilaton (clockwork) background, with anisotropic gauge couplings along the transverse (fifth)…

High Energy Physics - Phenomenology · Physics 2020-06-24 K. Farakos , A. Kehagias , G. Koutsoumbas

In this paper we attempt a non-perturbative study of the five dimensional, anisotropic SU(2) gauge theory on the lattice using Monte-Carlo techniques. Our goal is the exploration of the phase diagram, define the various phases and the…

High Energy Physics - Lattice · Physics 2015-05-19 K. Farakos , S. Vrentzos

We study the phase diagram and mass spectrum of an $SU(2)$ Gauge-Higgs Unification scenario on a five-dimensional orbifold.We observe spontaneous symmetry breaking within the Higgs phase of the theory and, in the vicinity of a newly…

High Energy Physics - Lattice · Physics 2015-09-14 Graham Moir , Maurizio Alberti , Francesco Knechtli , Nikos Irges

The anisotropic 5D SU(2) Yang-Mills model has been widely investigated on the lattice during the last decade. In the case where all dimensions are large in size, it was previously claimed that there is a new phase in the phase diagram,…

High Energy Physics - Lattice · Physics 2013-09-25 Luigi Del Debbio , Richard D. Kenway , Eliana Lambrou , Enrico Rinaldi

We establish the phase diagram of the five-dimensional anisotropic Abelian Higgs model by mean field techniques and Monte Carlo simulations. The anisotropy is encoded in the gauge couplings as well as in the Higgs couplings. In addition to…

High Energy Physics - Lattice · Physics 2010-02-03 P. Dimopoulos , K. Farakos , C. P. Korthals-Altes , G. Koutsoumbas , S. Nicolis

We present novel calculations of the mass hierarchy of the $SU(2)$ pure gauge theory on a space-time lattice with an orbifolded fifth dimension. This theory has three parameters; the gauge coupling $\beta$, the anisotropy $\gamma$, which is…

High Energy Physics - Lattice · Physics 2014-11-04 Graham Moir , Peter Dziennik , Nikos Irges , Francesco Knechtli , Kyoko Yoneyama

We present a non-perturbative study of the phase diagram of SU(2) Yang-Mills theory in a five-dimensional spacetime with a compact extra dimension. The non-renormalizable theory is regularized on an anisotropic lattice and investigated…

High Energy Physics - Lattice · Physics 2014-11-20 Philippe de Forcrand , Aleksi Kurkela , Marco Panero

We study non-perturbatively five-dimensional SU(2) gauge theories by means of the mean-field expansion on the lattice. On the anisotropic torus we show that a continuum limit can be defined where the anisotropy is a relevant parameter. The…

High Energy Physics - Lattice · Physics 2011-03-23 Francesco Knechtli , Nikos Irges , Antonio Rago

The electroweak Higgs doublets are identified as components of a vector multiplet in a higher dimensional supersymmetric field theory. We construct a minimal model in 6D where the electroweak $SU(2) \otimes U(1)$ gauge group is extended to…

High Energy Physics - Phenomenology · Physics 2008-11-26 Lawrence Hall , Yasunori Nomura , David Smith

In this article we examine the Layer phase of the five dimensional, anisotropic, Abelian gauge model. Our results are to be compared with the ones of the 4D U(1) gauge model in an attempt to verify that four dimensional physics governs the…

High Energy Physics - Lattice · Physics 2008-11-26 K. Farakos , S. Vrentzos

We investigate the nonperturbative phase structure of five-dimensional SU(3) pure Yang-Mills theory on the lattice. We perform numerical simulations using the Wilson plaquette gauge action on an anisotropic lattice with a four-dimensional…

High Energy Physics - Lattice · Physics 2014-04-25 Etsuko Itou , Kouji Kashiwa , Norihiro Nakamoto

We consider the lattice regularization of a five dimensional SU(2) gauge theory with periodic boundary conditions. We determine a consistent mean-field background and perform computations of various observables originating from fluctuations…

High Energy Physics - Lattice · Physics 2014-11-18 Nikos Irges , Francesco Knechtli

We construct realistic theories in which the Higgs fields arise from extra dimensional components of higher dimensional gauge fields. In particular, we present a minimal 5D SU(3)_C x SU(3)_W model and a unified 5D SU(6) model. In both cases…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gustavo Burdman , Yasunori Nomura

We study the dynamical symmetry breaking in the gauge-Higgs unification of the 5D ${\mathcal N}=1$ SUSY theory, compactified on an orbifold, $S^1/Z_2$. This theory identifies Wilson line degrees of freedoms as ``Higgs doublets''. We…

High Energy Physics - Phenomenology · Physics 2010-11-19 Naoyuki Haba , Toshifumi Yamashita
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