Results of hadron spectroscopy with two dynamical mass-degenerate chirally improved quarks are presented. Three ensembles with pion masses of 322(5), 470(4) and 525(7) MeV, lattices of size 16^3 \times 32, and lattice spacings close to 0.15 fm are investigated. We discuss the possible appearance of scattering states, considering masses and eigenvectors. Partially quenched results in the scalar channel suggest the presence of a 2-particle state, however, in most channels we cannot identify them. Where available, we compare to results from quenched simulations using the same action.
@article{arxiv.1010.2366,
title = {Some results on excited hadrons in 2-flavor QCD},
author = {Georg P. Engel and C. B. Lang and Markus Limmer and Daniel Mohler and Andreas Schäfer},
journal= {arXiv preprint arXiv:1010.2366},
year = {2011}
}
Comments
7 pages, 9 figures, 1 table, talk given at the XXVIII International Symposium on Lattice Field Theory (Lattice 2010), June 14-19,2010, Villasimius, Sardinia, Italy