335 citations · 1.9k across the 75 of their papers we have counts for
8 papers · 2 filters
Study of Lattice Correlation Functions at Small Times using the QCD Sum Rules Continuum Model
Chris Allton, Stefano Capitani
In this paper we study the work of Leinweber by applying the Continuum Model of QCD Sum Rules (QCDSR) to the analysis of (quenched) lattice correlation functions. We expand upon hi…
Local bilinear operators on the lattice and their perturbative renormalisation including O(a) effects
S. Capitani, M. Göckeler, R. Horsley +4
Some basic concepts are discussed to derive renormalisation factors of local lattice operators relevant to deep inelastic structure functions and to other measurable quantities. Th…
High-precision computation of two-loop Feynman diagrams with Wilson fermions
Stefano Capitani, Sergio Caracciolo, Andrea Pelissetto +1
We apply the coordinate-space method by Luescher and Weisz to the computation of two-loop diagrams in full QCD with Wilson fermions on the lattice. The essential ingredient is the…
Non-perturbative improvement and renormalization of lattice operators
S. Capitani, M. Goeckeler, R. Horsley +7
The Alpha Collaboration has proposed an optimal value for c_SW in the Sheikholeslami-Wohlert action, chosen to remove O(a) effects. To measure hadronic matrix elements to the same…
Non-perturbative quark mass renormalization
S. Capitani, M. Guagnelli, M. Luescher +4
We show that the renormalization factor relating the renormalization group invariant quark masses to the bare quark masses computed in lattice QCD can be determined non-perturbativ…
Improvement of Nucleon Matrix Elements
S. Capitani, M. Goeckeler, R. Horsley +7
We report on preliminary results of a high statistics quenched lattice QCD calculation of nucleon matrix elements within the Symanzik improvement programme. Using the recently dete…