Light-front (LF) quantization in light-cone (LC) gauge is used to construct a unitary and simultaneously renormalizable theory of the Standard Model. The framework derived earlier for QCD is extended to the Glashow, Weinberg, and Salam (GWS) model of electroweak interaction theory. The Lorentz condition is automatically satisfied in LF-quantized QCD in the LC gauge for the free massless gauge f...

We calculate the equal-time commutator of two fermionic currents within the framework of the 1+1 dimensional fully quantized theory, describing the interaction of massive fermions with a massive vector boson. It is shown that the interaction does not change the result obtained within the theory of free fermions. PACS number(s): 11.40.-q, 11.40.DW, 11.40.Ex Typeset using REVTEX ∗e-mail address –...

We study the η → 2γ decay using an extended three-flavor Nambu-Jona-Lasinio model that includes the 't Hooft instanton induced interaction. The η meson mass and the η → 2γ decay width are reproduced simultaneously with a rather strong instanton induced interaction. The calculated η decay constant is f η = 2.23f π and it suggests that the η meson is no longer the Goldstone boson.

We implement a three-body confinement force, introduced on an algebraic basis, into a semirelativistic version of the Goldstone-boson-exchange constituent quark model. By solving the Faddeev equations we show that this interaction can increase the gap between singlet and colour states, such as the latter can be ignored and the known baryons can be described as q3 systems. We analyze the effect ...

The standard model (SM) of fundamental interactions, has been the successful theory over the last 25 years. The overall success of the SM in describing the elementary interactions, the discovery of gauge bosons at CERN in the eighties as well as the top discovery at Fermilab in 1995, strengthened the expectation that the Higgs mechanism is the one that gives mass to all particles. At the moment...

An exact quantum master equation formalism is constructed for the efficient evaluation of quantum non-Markovian dissipation beyond the weak system-bath interaction regime in the presence of time-dependent external field. A novel truncation scheme is further proposed and compared with other approaches to close the resulting hierarchically coupled equations of motion. The interplay between system...

We study the short-range nucleon-nucleon interaction in a nonrelativistic chiral constituent quark model by diagonalizing a Hamiltonian containing a linear confinement and a Goldstone boson exchange interaction between quarks. A finite six-quark basis obtained from single particle cluster model states was previously used. Here we show that the configurations which appear naturally through the u...

For the free Fermion gas at thermodynamic equilibrium, the temperature which represents the averaged kinetic energy is demonstrated to have the proper property which is invariant under the Lorentz boost, using the conceptions of the relativistic quantum field theory and statistical physics. The thermodynamic interaction is described by the coupling of particles with the vacuum of a scalar pseud...

We study the exotic hadrons in s-wave scattering of the Nambu-Goldstone boson with a target hadron based on chiral dynamics. Utilizing the low energy theorem of chiral symmetry, we show that the s-wave interaction is not strong enough to generate bound states in exotic channels in flavor SU(3) symmetric limit, although the interaction is responsible for generating some nonexotic hadron resonanc...