We investigate the extension of the Prokof’ev-Svistunov worm algorithm to Wilson lattice fermions in an external scalar field. We effectively simulate by Monte Carlo the graphs contributing to the hopping expansion of the twopoint function on a finite lattice to arbitrary order. Tests are conducted for a constant background field i. e. free fermions at some mass. For the method introduced here ...

The latest results of an ongoing project for the lattice simulation of QCD with a single quark flavor are presented. The Symanzik tree-level-improved Wilson action is adopted in the gauge sector and the (unimproved) Wilson action for the fermion. Results from new simulations with one step of Stout-smearing (ρ = 0.15) in the fermion action are discussed. The one-flavor theory is simulated by a p...

We describe an algebraic algorithm which allows to express every one-loop lattice integral with gluon or Wilson-fermion propagators in terms of a small number of basic constants which can be computed with arbitrary high precision. Although the presentation is restricted to four dimensions the technique can be generalized to every space dimension. Various examples are given, including the one-lo...

The latest results of an ongoing project for the lattice simulation of QCD with a single quark flavor are presented. The Symanzik tree-level-improved Wilson action is adopted in the gauge sector and the (unimproved) Wilson action for the fermion. Results from new simulations with one step of Stout-smearing (ρ = 0.15) in the fermion action are discussed. The one-flavor theory is simulated by a p...

Endocrinologist and revered clinician scientist. He was born in Wellington TX, USA, on Aug 26, 1932, died Dallas June 13, 2021, aged 88 years. Professor Jean Wilson is best known as the endocrinologist whose research led to understanding treatment of prostatic pathology. But when his friend Joseph Goldstein, a colleague at University Texas (UT) Southwestern Medical Center Dallas, presented with...