Probing nucleon structure on the lattice
/ Authors
M. Göckeler, P. Hägler, R. Horsley, Y. Nakamura, D. Pleiter, P. Rakow, A. Schäfer, G. Schierholz, W. Schroers, H. Stüben
and 2 more authors
/ Abstract
Abstract.The QCDSF/UKQCD Collaboration has an ongoing program to calculate nucleon matrix elements with two flavours of dynamical O(a) improved Wilson fermions. Here we present recent results on the electromagnetic form factors, the quark momentum fraction 〈x〉 and the first three moments of the nucleon's spin-averaged and spin-dependent generalised parton distributions, including preliminary results with pion masses as low as 320MeV.
Journal: The European Physical Journal A