We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (Nf=2+1+1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at three values of the lattice spacing a~0.06 fm, a~0.08 fm and a~0.09 fm with lattice sizes ranging from L~1.9 fm to L~3.9 fm. We perform a preliminary study of SU(2) chiral perturbation theory by combining our lattice data from these three values of the lattice spacing.
@article{arxiv.1101.0518,
title = {Light hadrons from Nf=2+1+1 dynamical twisted mass fermions},
author = {R. Baron and B. Blossier and P. Boucaud and J. Carbonell and A. Deuzeman and V. Drach and F. Farchioni and V. Gimenez and G. Herdoiza and K. Jansen and C. Michael and I. Montvay and E. Pallante and O. Pène and S. Reker and C. Urbach and M. Wagner and U. Wenger},
journal= {arXiv preprint arXiv:1101.0518},
year = {2019}
}
Comments
7 pages, 5 figures, talk presented at the XXVIII International Symposium on Lattice Field Theory, Lattice2010, June 14-19, 2010 Villasimius, Italy