1997/09/25 by S. Capitani, M. Göckeler, M. Goeckeler +9 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.1016/s0920-5632(97)00730-5
published as Nucl.Phys.Proc.Suppl.63:233-235,1998 · 3 pages, Latex, 4 figures, epsf.sty and espcrc2.sty needed, Talk given at LATTICE97. Figure 4 corrected
arxiv created 1997/09/25 · openalex publication_date 1998/04/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
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 determined renormalisation constants from the Alpha Collaboration we present a fully non-pertubative calculation of the forward nucleon axial matrix element with O(a) lattice artifacts completely removed. Runs are made at β=6.0 and β=6.2, in an attempt to check scaling and O(a2) effects. We shall also briefly describe results for <x>, the matrix element of a higher derivative operator.