Four-Fermion Models in the Theory of Electro-Weak and Strong Interactions
With the help of the path integration method, this book investigates the generation of dynamical mass in various four-fermion models, including models with the internal symmetry groups SU(2), SU(3), SU(5), and with CP-violation. It also explores the local SU(2)xU(1) four-fermion model with the composite Higgs boson, and shows that the four-quark interaction appears naturally with the help of the gluon propagator in the infrared region. The book also provides the mass formula for the σ-meson, the Goldberger-Treiman relation and the values of quark condensates, and proves that four-quark models describe the region between the asymptotic freedom and quark confinement. It also considers a number of quantum processes within the framework of effective chiral Lagrangians.
S. I. Kruglov, DSc, PhD, is a Research Associate at the University of Toronto, having previously worked as Visiting Professor for Quantum Field Theory at Nankai University, China, and as Professor at the Technical University in Minsk, Belarus. He also worked as a Research Associate at the Institute of Physics Academy of Sciences of Belarus and at the Center for Particle and High Energy Physics at Belarus State University. His publications include the book Symmetry and Electromagnetic Interaction of Fields with Multispin, and more than 100 research papers.
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