arXiv:hep-lat/0510061·v1·High Energy Physics — Lattice
The axial charge of the nucleon on the lattice and in chiral perturbation theory
A. Ali Khan · M. Göckeler · P. Hägler · T. R. Hemmert · R. Horsley · A. C. Irving · D. Pleiter · P. E. L. Rakow · A. Schäfer · G. Schierholz · H. Stüben · T. Wollenweber · J. M. Zanotti
Abstract
We present recent Monte Carlo data for the axial charge of the nucleon obtained by the QCDSF-UKQCD collaboration for N_f=2 dynamical quarks. We compare them with formulae from chiral perturbation theory in finite and infinite volume and find a remarkably consistent picture.
Comments: 6 pages, 3 figures, talk presented at Lattice2005 (weak matrix elements), needs PoS.cls