Showing papers on "Gauge boson published in 1984"
TL;DR: In this article, it was shown that non-Abelian gauge fields arise in the adiabatic development of simple quantum mechanical systems and are related to energy splittings, which may be observable in real systems.
Abstract: Generalizing a construction of Berry and Simon, we show that non-Abelian gauge fields arise in the adiabatic development of simple quantum mechanical systems. Characteristics of the gauge fields are related to energy splittings, which may be observable in real systems. Similar phenomena are found for suitable classical systems.
1,432 citations
TL;DR: In this article, the Euler-Heisenberg effective action due to fermions coupled to a homotopically nontrivial gauge transformation with winding number n is calculated in the SU(2) theory.
Abstract: The effective gauge field action due to fermions coupled to $\mathrm{SU}(N)$ gauge fields in three dimensions is found to change by $\ifmmode\pm\else\textpm\fi{}\ensuremath{\pi}|n|$ under a homotopically nontrivial gauge transformation with winding number $n$. This gauge noninvariance can be eliminated by adding a parity-violating topological term to the action, or by regulating the theory in a way which produces this term automatically in the effective action. The Euler-Heisenberg effective action is calculated in the SU(2) theory and in QED.
647 citations
TL;DR: In this article, the authors constructed models in which the Higgs doublet whose vacuum expectation breaks SU(2) × U(10) is a bound state of massive strongly interacting fermions.
642 citations
TL;DR: In this article, the effective field action due to an odd number of fermion species in three-dimensional SU(N) gauge theories is shown to change by using a homotopically nontrivial gauge transformation with winding number $n.
Abstract: The effective gauge field action due to an odd number of fermion species in three-dimensional $\mathrm{SU}(N)$ gauge theories is shown to change by $\ifmmode\pm\else\textpm\fi{}\ensuremath{\pi}|n|$ under a homotopically nontrivial gauge transformation with winding number $n$. Gauge invariance can be restored by use of Pauli-Villars regularization, which, however, introduces parity nonconservation in the form of a parity-nonconserving, topological term in the effective action.
592 citations
TL;DR: In this paper, the authors discuss the corrections to the relation MW = MZ cos θ in composite Higgs models, and construct a model which has a custodial SU(2) symmetry and in which the Higgs potential is produced entirely by SU( 2) × U(1) and axial U( 1) gauge interactions.
440 citations
TL;DR: In this article, the renormalization effects of SU(3)×SU(2)×U(1) models coupled to supergravity were studied at the one-loop level.
432 citations
TL;DR: In this article, manifestly Lorentz-invariant actions for self-dual antisymmetric-tensor gauge fields are found by using cubic Lagrange-multiplier terms.
288 citations
TL;DR: In this paper, it was shown that the neutral-current experiments determining H-neutral do not restrict mixing of U(1) × U(2)s in an electroweak SU(2,L × U (1)R ×U(1)(B−L)/2) gauge theory, and that there is a second Z in the range 70-110 GeV whose couplings to quarks and leptons are comparable to those of the Z with a mass of 95 GeV.
249 citations
TL;DR: In this article, the structure functions for massive transverse and longitudinal gauge bosons were derived and compared against perturbation theory for some simple examples, and it was shown that the results can be used to calculate cross sections for producing heavy quarks or leptons, Higgs bosons, or any particles carrying SU(2) quantum numbers.
188 citations
TL;DR: In this paper, a self interacting massless spin three field theory is constructed and the free field gauge invariance is modified by a term of first order in the coupling constant, and the abelian transformation of the free Lagrangian is shown to become non-abelian.
Abstract: In this paper we start the construction of a self interacting massless spin three field theory. The first order self interaction is constructed. The free field gauge invariance is modified by a term of first order in the coupling constant. Finally the abelian gauge transformation of the free Lagrangian is shown to become non-abelian.
175 citations
TL;DR: The experimental limits on the masses and mixings with ordinary neutrinos of these leptons are very poor for masses above about 1 GeV, and suggestions are made for extending these limits, in experiments involving the production of $b$ quarks, $W$ and $Z$ bosons, and any heavier gauge bosons that might exist, and via high-statistics studies of neutral current neutrino interactions as mentioned in this paper.
Abstract: Neutral leptons corresponding to "right-handed neutrinos" are expected in many grand unified theories of the electroweak strong interactions. At present, the experimental limits on the masses and mixings with ordinary neutrinos of these leptons are very poor for masses above about 1 GeV. Suggestions are made for extending these limits, in experiments involving the production of $b$ quarks, $W$ and $Z$ bosons, and any heavier gauge bosons that might exist, and via high-statistics studies of neutral-current neutrino interactions.
TL;DR: In this article, the effect of soft supersymmetry-breaking terms on one-loop finite N = 1 supersymmetric gauge theories is investigated, and the general conditions that finiteness be preserved given.
TL;DR: In this paper, the authors present a model in which gauge symmetry is spontaneously broken at tree level (O(10) → SU(5) × sU(1)) and supersymmetry is dynamically broken at an exponentially smaller scale.
TL;DR: In this paper, the correlation length λ of the vacuum condensate G2 is determined by Montecarlo simulation of anSU(2) lattice gauge theory, and the result isG2 λ4 = 0.0019 ± 0.0002.
Abstract: The correlation length λ of the vacuum condensateG2 is determined by Montecarlo simulation of anSU(2) lattice gauge theory. The result isG2 λ4 = 0.0019 ± 0.0002. The implications of this result are discussed.
TL;DR: In this paper, a formulation of QED using only gauge invariant fields acting on a physical state space is discussed, where the fields are the electromagnetic tensor F μν and a non-local electron field ψ f depending on a quadruple { f μ } of auxiliary functions.
CERN1
TL;DR: In this article, it was shown that pure φ4 field theory is trivial (noninteracting) in four dimensions and that the combined theory may become non-trivial for a limited range of values of the renormalized coupling constants.
TL;DR: In this paper, it was shown that supersymmetric Yang-Mills theories can be generated as the low energy behavior of strongly coupled theories which possess no supersymmetry at high energy.
TL;DR: In this article, a model which links N = 1 supergravity with the minimal left-right symmetric model, based on the gauge symmetry SU(2)L × SU (2)R × U(1)B−L and a minimal set of Higgs fields, is presented.
TL;DR: In this article, the present status of the finite temperature deconfinement transition in SU(N) gauge theory is surveyed and a survey of the present state of finite temperature decomposition is given.
TL;DR: In this paper, it is argued that a charge-conjugation conserving lagrangian provides the most reasonable version of the theory, leading to phenomenological consequences which differ from those of the so-called manifest left-right symmetry.
TL;DR: In this paper, tree unitarity is shown to be valid for partial-wave scattering amplitudes provided three quartic couplings from the Higgs potential are small, provided that at least one neutral scalar must have a mass $Ml1$ TeV.
Abstract: The abundance of new Higgs bosons in many extensions of the electroweak theory motivate an investigation of their effect on partial-wave scattering amplitudes. For SU(2)\ifmmode\times\else\texttimes\fi{}U(1), tree unitarity is shown to be valid for $W$ and $Z$ amplitudes provided three quartic couplings from the Higgs potential are small ($|f|l16\ensuremath{\pi}$). The mass spectrum of the Higgs boson is almost unconstrained but for the simple requirement that at least one neutral scalar must have a mass $Ml1$ TeV. Similar results are obtained in a general broken guage theory for the scattering of arbitrary combinations of scalar and vector bosons.
TL;DR: The leading two-loop correction to the masses of the vector bosons was calculated in the limit of large Higgs mass as mentioned in this paper, and the result is equal and of the same sign as the one-loop result for a higgs mass of about fifty-five times the vector Boson mass.
TL;DR: In this article, the authors investigated the excitation energy of hybrid mesons using SU(3) lattice gauge theory and showed that the energy of a hybrid meson is proportional to the number of mesons in the lattice.
TL;DR: The existence of a time-independent regular finite energy solution to SU(2) Yang-Mills-Higgs theory with a Higgs doublet is proved in this article.
TL;DR: In this article, the authors examined the compactification of D =4+2 N, Einstein-Maxwell Dirac theory and showed that the manifold CP N × M 4 is a solution of the equations of motion.
TL;DR: In this paper, N = 2 extended SUSY GUTs were constructed to provide a general association between massive spin-1 gauge bosons, spin- 1 2 inos and spin-0 Higgs bosons.
TL;DR: In this paper, the dynamical structure of the Poincare gauge field theory coupled to matter fields and some of its implications for a quantum theory of gravity are investigated, and exact electrovac solutions with non-trivial torsion are derived from the duality Ansatz.
Abstract: The dynamical structure of the Poincare gauge field theory coupled to matter fields and some of its implications for a quantum theory of gravity are investigated.
Essentially, the method of BELAVIN et al. for generating instanton solutions in Yang-Mills theory is transferred to the gravitational gauge model. The result are as follows: For configurations obeying a modified double duality Ansatz for the curvature the metrical background is determined by Einstein-type field equations coupled almost canonically to the stress-energy content of external fields.
Exact electrovac solutions with non-trivial torsion are derived from the duality Ansatz. In a Euclidean space-time the corresponding pseudoparticle solutions are expected to play a dominant rǒle in the quantization of gravity via Freynman's method of path integrals.
TL;DR: In this article, the average thermal Wilson loop L in finite temperature SU(2) gauge theory was calculated using Monte Carlo simulation on a 103 × 4 lattice and β = 0.32 ± 0.03 in very good agreement with this universality conjecture.