Dilatonic Topological Defects in 3+1 Dimensions and their Embeddings

Abstract

We consider Lagrangians in 3+1 dimensions admitting topological defects where there is an additional coupling between the defect scalar field $\Phi$ and the gauge field kinetic term (eg $B(|\Phi {|}^2)F_{\mu \nu }{F}^{\mu \nu }$). Such a {\it dilatonic} coupling in the context of a static defect, induces a spatially dependent effective gauge charge and effective mass for the scalar field which leads to modified properties of the defect core. In particular, the scale of the core gets modified while the stability properties of the corresponding embedded defects are also affected. These modifications are illustrated for gauged (Nielsen-Olesen) vortices and for gauged ('t Hooft-Polyakov) monopoles. The corresponding dilatonic global defects are also studied in the presence of an external gauge field.

arXiv comment13 pages, 15 figures. Accepted in Phys. Rev. D (to appear). arXiv admin note: text overlap with arXiv:hep-ph/9904229 by other authors

References in corpus (46)

• Dynamics of dark energy
• The Confrontation between General Relativity and Experiment
• Further Evidence for Cosmological Evolution of the Fine Structure Constant
• A Search for Time Variation of the Fine Structure Constant
• Varying constants, Gravitation and Cosmology
• Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra
• Semilocal and Electroweak Strings
• Violations of the equivalence principle in a dilaton-runaway scenario
• Dilatonic ghost condensate as dark energy
• A Simple Varying-alpha Cosmology
• Spatial variation in the fine-structure constant -- new results from VLT/UVES
• A Higgslike Dilaton
• Further constraints on variation of the fine structure constant from alkali doublet QSO absorption lines
• PPN Parameter $\gamma$ and Solar System Constraints of Massive Brans-Dicke Theories
• Cosmological acceleration, varying couplings, and Lorentz breaking
• Electroweak String Configurations with Baryon Number
• Semilocal Topological Defects
• Is there Correlation between Fine Structure and Dark Energy Cosmic Dipoles?
• Detailed Stability Analysis of Electroweak Strings
• Models of quintessence coupled to the electromagnetic field and the cosmological evolution of alpha
• Semilocal strings and monopoles
• The Constancy of the Constants of Nature: Updates
• Quintessence Cosmology and Varying $\alpha$
• Embedded Defects
• Quintessence Models and the Cosmological Evolution of alpha
• Variation of fundamental constants: theory and observations
• Semilocal Defects
• CMB Maximum Temperature Asymmetry Axis: Alignment with Other Cosmic Asymmetries
• General Dynamics of Varying-Alpha Universes
• Galactic Cosmic Strings as Sources of Primary Antiprotons
• The Wall of Fundamental Constants
• The formation rate of semilocal strings
• Dark Energy coupling with electromagnetism as seen from future low-medium redshift probes
• Varying Alpha and the Electroweak Model
• Varying Couplings in Electroweak Theory
• Generalized LTB model with Inhomogeneous Isotropic Dark Energy: Observational Constraints
• On the Asymptotics of Nielsen-Olesen Vortices
• Dilaton constraints and LHC prospects
• The Equivalence Principle and the Constants of Nature
• Where are the Walls?
• Topological Quintessence
• Varying Alpha Monopoles
• Dilaton dominance relaxes LHC and cosmological constraints in supersymmetric models
• Varying alpha and cosmic acceleration in Brans-Dicke-BSBM theory: stability analysis and observational tests
• Stabilizing the Semilocal String with a Dilatonic Coupling
• Cosmological Consequences of Topological Defects: Dark Energy and Varying Fundamental Constants

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