We present results for excited meson spectra from Nf=2 clover-Wilson configurations provided by the CP-PACS Collaboration. In our study we investigate both low and high spin mesons. For spin-0 and spin-1 mesons, we are especially interested in the excited states. To access these states we construct several different interpolators from quark sources of different spatial smearings and calculate a matrix of correlators. For this matrix we then solve a generalized eigenvalue problem. For spin-2 and spin-3, we extract only the lowest lying states.
@article{arxiv.0903.2358,
title = {Low and high spin mesons from $N_f=2$ Clover-Wilson lattices},
author = {Tommy Burch and Christian Hagen and Martin Hetzenegger and Andreas Schäfer},
journal= {arXiv preprint arXiv:0903.2358},
year = {2009}
}
Comments
24 pages, 12 figures, 9 tables; minor changes, references added, to appear in Phys. Rev. D