Confined dirac propagation for hybrid chiral bag model and neutron-proton mass difference

Karagöz, Nurettin


Complex monopoles in the Georgi-Glashow-Chern-Simons model
Tekin, Bayram; Hosotani, Y (1999-02-01)
We investigate the three-dimensional Georgi-Glashow model with a Chern-Simons term. We find that there exist complex monopole solutions of finite action. They dominate the path integral and disorder the Higgs vacuum, but electric charges are not confined. Subtleties in the gauge-fixing procedure in the path integral and issues related to Gribov copies are noted. (C) 1999 Elsevier Science B.V.
Anomaly in the chiral Schwinger model and freedom in Fujikawas regularizing operator
Goshtasbpour, Mehrdad; Pak, Namık Kemal; Department of Physics (1988)
Shock-free wave propagation in gauge theories
McCarthy, Jim; Sarıoğlu, Bahtiyar Özgür (2000-01-01)
We present the shock-free wave propagation requirements for massless fields. First, we briefly argue how the "completely exceptional" approach, originally developed to study the characteristics of hyperbolic systems in 1 + 1 dimensions, can be generalized to higher dimensions and used to describe propagation without emerging shocks, with characteristic flow remaining parallel along the waves. We then study the resulting requirements for scalar, vector, vector-scalar, and gravity models and characterize phys...
Effective gauge theories from fuzzy extra dimensions
Ünal, Gönül; Kürkcüoğlu, Seçkin; Department of Physics (2016)
In this thesis, we investigate the formulation and various aspects of gauge theories with fuzzy extra dimensions. In SU (N ) gauge theories coupled to a suitable number of adjoint scalar fields, we determine a family of fuzzy vacuum configurations dynamically emerging after the spontaneously symmetry breaking of the gauge symmetry. The emergent models are conjectured to be effective U (n) (n < N ) gauge theories with fuzzy extra dimensions. Making use of the equivariant parametrization technique and focusin...
Multidimensional quantum tunnelling formulation of oxygen-16 and uranium-238 reaction
Ataol, Murat Tamer; Yılmaz, Osman; Department of Physics (2004)
Multidimensional quantum tunnelling is an important tool that is used in many areas of physics and chemistry. Sub-barrier fusion reactions of heavy-ions are governed by quantum tunnelling. However, the complexity of the structures of heavy-ions does not allow us to use simple one-dimensional tunnelling equations to and the tunnelling probabilities. Instead of this one should consider all the degrees of freedom which affect the phenomenon and accordingly the intrinsic structure or the deformation of the nucl...
Citation Formats
N. Karagöz, “Confined dirac propagation for hybrid chiral bag model and neutron-proton mass difference,” Ph.D. - Doctoral Program, Middle East Technical University, 1989.