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Ulfg Meisner - One of the best experts on this subject based on the ideXlab platform.

  • derivation of spontaneously broken gauge symmetry from the consistency of effective field theory ii scalar field self Interactions and the Electromagnetic Interaction
    Physics Letters B, 2019
    Co-Authors: D Djukanovic, J Gegelia, Ulfg Meisner
    Abstract:

    Abstract We extend our study of deriving the local gauge invariance with spontaneous symmetry breaking in the context of an effective field theory by considering self-Interactions of the scalar field and inclusion of the Electromagnetic Interaction. By analyzing renormalizability and the scale separation conditions of three-, four- and five-point vertex functions of the scalar field, we fix the two couplings of the scalar field self-Interactions of the leading order Lagrangian. Next we add the Electromagnetic Interaction and derive conditions relating the magnetic moment of the charged vector boson to its charge and the masses of the charged and neutral massive vector bosons to each other and the two independent couplings of the theory. We obtain the bosonic part of the Lagrangian of the electroweak Standard Model as a unique solution to the conditions imposed by the self-consistency conditions of the considered effective field theory.

Phong Thanh Nguyen - One of the best experts on this subject based on the ideXlab platform.

  • Modeling human head tissues using fourth-order debye model in convolution-based three-dimensional finite-difference time-domain
    IEEE Transactions on Antennas and Propagation, 2014
    Co-Authors: Samah Mustafa, Phong Thanh Nguyen
    Abstract:

    A fourth order Debye model is derived using genetic algorithms to represent the dispersive properties of the 17 tissues that form the human head. The derived model gives accurate estimation of the electrical properties of those tissues across the frequency band from 0.1 GHz to 3 GHz that can be used in microwave systems for head imaging. A convolution-based three-dimensional finite-difference time-domain (3D-FDTD) formulation is implemented for modeling the Electromagnetic wave propagation in the dispersive head tissues whose frequency dependent properties are represented by the derived fourth-order Debye model. The presented results show that the proposed 3D-FDTD and fourth-order Debye model can accurately show the Electromagnetic Interaction between a wide band radiation and head tissues with low computational overhead and more accurate results compared with using multi-pole Cole-Cole model.

J. González-sánchez - One of the best experts on this subject based on the ideXlab platform.

  • Improvement of localised corrosion resistance of AISI 2205 Duplex Stainless Steel joints made by gas metal arc welding under Electromagnetic Interaction of low intensity
    Applied Surface Science, 2014
    Co-Authors: M.a. García-rentería, V. H. López-morelos, R. García-hernández, L. Dzib-pérez, E. García-ochoa, J. González-sánchez
    Abstract:

    Abstract The resistance to localised corrosion of AISI 2205 duplex stainless steel plates joined by Gas Metal Arc Welding (GMAW) under the effect of Electromagnetic Interaction of low intensity (EMILI) was evaluated with sensitive electrochemical methods. Welds were made using two shielding gas mixtures: 98% Ar + 2% O2 (M1) and 97% Ar + 3% N2 (M2). Plates were welded under EMILI using the M1 gas with constant welding parameters. The modified microstructural evolution in the high temperature heat affected zone and at the fusion zone induced by application of EMILI during welding is associated with the increase of resistance to localised corrosion of the welded joints. Joints made by GMAW using the shielding gas M2 without the application of magnetic field presented high resistance to general corrosion but high susceptibility to undergo localised attack.

J Gegelia - One of the best experts on this subject based on the ideXlab platform.

  • derivation of spontaneously broken gauge symmetry from the consistency of effective field theory ii scalar field self Interactions and the Electromagnetic Interaction
    Physics Letters B, 2019
    Co-Authors: D Djukanovic, J Gegelia, Ulfg Meisner
    Abstract:

    Abstract We extend our study of deriving the local gauge invariance with spontaneous symmetry breaking in the context of an effective field theory by considering self-Interactions of the scalar field and inclusion of the Electromagnetic Interaction. By analyzing renormalizability and the scale separation conditions of three-, four- and five-point vertex functions of the scalar field, we fix the two couplings of the scalar field self-Interactions of the leading order Lagrangian. Next we add the Electromagnetic Interaction and derive conditions relating the magnetic moment of the charged vector boson to its charge and the masses of the charged and neutral massive vector bosons to each other and the two independent couplings of the theory. We obtain the bosonic part of the Lagrangian of the electroweak Standard Model as a unique solution to the conditions imposed by the self-consistency conditions of the considered effective field theory.

Tadashi Toyoda - One of the best experts on this subject based on the ideXlab platform.