We report on a scaling test of several mesonic observables in the non-perturbatively O(a) improved Wilson theory with two flavors of dynamical quarks. The observables are constructed in a fixed volume of 2.4fm x (1.8fm)^3 with Schroedinger functional boundary conditions. No significant scaling violations are found. Using the kaon mass determined in \cite{cernI}, we update our estimate of the Lambda parameter to Lambda^(2)_{msbar}/m_K = 0.52(6).
@article{arxiv.0804.3383,
title = {Scaling test of two-flavor O(a)-improved lattice QCD},
author = {Michele Della Morte and Patrick Fritzsch and Harvey B. Meyer and Hubert Simma and Rainer Sommer and Shinji Takeda and Oliver Witzel and Ulli Wolff},
journal= {arXiv preprint arXiv:0804.3383},
year = {2008}
}
Comments
12 pages, 5 tables, 3 figures; one equation corrected; last line and caption of table 4 revised