We present results from the QCDSF/UKQCD collaboration for the electromagnetic and semi-leptonic form factors for the hyperons. The simulations are performed on our new ensembles generated with 2+1 flavours of dynamical O(a)-improved Wilson fermions. A unique feature of these configurations is that the quark masses are tuned so that the singlet quark mass is held fixed at its physical value. We use 5 such choices of the individual quark masses on 24^3x48 lattices with a lattice spacing of about 0.078 fm.
@article{arxiv.1101.2806,
title = {Hyperon Form Factors from N_f=2+1 QCD},
author = {M. Göckeler and Ph. Hägler and R. Horsley and Y. Nakamura and D. Pleiter and P. E. L. Rakow and A. Schäfer and G. Schierholz and H. Stüben and F. Winter and J. M. Zanotti},
journal= {arXiv preprint arXiv:1101.2806},
year = {2011}
}
Comments
7 pages, 6 figures, 1 table. Talk presented at The XXVIII International Symposium on Lattice Field Theory, Villasimius, Italy, 14-19 June 2010