The excited isovector meson spectrum is explored using two chirally improved dynamical quarks. Seven ensembles, with pion masses down to \approx 250 MeV are discussed and used for extrapolations to the physical point. Strange mesons are investigated using partially quenched s-quarks. Using the variational method, we extract excited states in several channels and most of the results are in good agreement with experiment.
@article{arxiv.1112.1198,
title = {Excited meson spectroscopy with two chirally improved quarks},
author = {Georg P. Engel and C. B. Lang and Markus Limmer and Daniel Mohler and Andreas Schaefer},
journal= {arXiv preprint arXiv:1112.1198},
year = {2011}
}
Comments
7 pages, 11 figures, talk given at the XXIX International Symposium on Lattice Field Theory - Lattice 2011, July 10-16 2011, Squaw Valley, Lake Tahoe, California