72 citations · 137 across the 6 of their papers we have counts for
6 papers
Oscillons and oscillating kinks in the Abelian-Higgs model
V. Achilleos, F. K. Diakonos, D. J. Frantzeskakis +5
We study the classical dynamics of the Abelian Higgs model employing an asymptotic multiscale expansion method, which uses the ratio of the Higgs to the gauge field amplitudes as a…
Determination of the axial and pseudoscalar form factors from lattice QCD
C. Alexandrou, E. B. Gregory, T. Korzec +4
We present a lattice QCD calculation of the matrix elements of the axial-vector and pseudoscalar currents. The decomposition of these matrix elements into the appropriate…
A multi-scale perturbative approach to SU(2)-Higgs classical dynamics: stability of nonlinear plane waves and bounds of the Higgs field mass
V. Achilleos, F. K. Diakonos, D. J. Frantzeskakis +4
We study the classical dynamics of SU(2)-Higgs field theory using multiple scale perturbation theory. In the spontaneously broken phase, assuming small perturbations of the Higgs f…
Non-Linear Sigma Model and asymptotic freedom at the Lifshitz point
K. Anagnostopoulos, K. Farakos, P. Pasipoularides +1
We construct the general O(N)-symmetric non-linear sigma model in 2+1 spacetime dimensions at the Lifshitz point with dynamical critical exponent z=2. For a particular choice of th…
Axial Nucleon and Nucleon to Delta form fractors and the Goldberger-Treiman Relations from Lattice QCD
C. Alexandrou, G. Koutsou, Th. Leontiou +2
We evaluate the nucleon axial form factor, , and induced pseudoscalar form factor, , as well as the pion-nucleon form factor, , in lattice QCD. W…
Correlation Functions from Quantum Cluster Algorithms: Application to U(1) Quantum Spin and Quantum Link Models
A. Tsapalis
We demonstrate how correlation functions for non-diagonal operators can be measured with the loop-cluster algorithm for quantum spin models. We introduce the U(1) quantum link mode…