The charge density of vector particles, for example W(+/-), may change sign. The effect manifests itself even for a free propagation, when the energy of the W-boson satisfies epsilon>sqrt[2]m and the standing wave is considered. The charge density of W also changes sign in a vicinity of a Coulomb center. For an arbitrary vector boson (e.g., for spin 1 mesons), this effect depends on the g-facto...

In the study of correlated systems, approximations based on dynamical mean-field theory (DMFT) provide a practical way to take local vertex corrections into account, which capture, respectively, particle-particle screening at weak coupling and formation moment strong coupling. We show that in both limits can be efficiently parametrized terms single-boson exchange, such two-particle physics desc...

Abstract We consider the effective interaction of quarks with a new GeV-scale vector particle that couples to electroweak gauge bosons by so-called Chern-Simons interaction. call this (CS) boson. construct Lagrangian CS boson two different flavors. This is given divergent loop diagram, however, it turns out part equal zero as consequence CKM matrix unitarity in SM. Therefore, we are able predic...

High E T jets at p¯ p collisions and triple gauge boson vertex Abstract Triple gauge boson vertex, which is inherent to the model of a dynamical breaking of the electroweak symmetry, leads to an effective four-fermion interaction of quarks. Calculation of the effective coupling constant in the framework of the model results in agreement with recent information on enhancement of inclusive high E...