We have greatly extended an earlier calculation of the charmonium spectrum on three flavor dynamical quark ensembles by using more recent ensembles generated by the MILC collaboration. The heavy quarks are treated using the Fermilab formulation. The charmonium state masses are in reasonable agreement with the observed spectrum; however, some of the spin splittings may still be too small.
@article{arxiv.hep-lat/0510072,
title = {Onium Masses with Three Flavors of Dynamical Quarks},
author = {Steven Gottlieb and L. Levkova and M. DiPierro and A. El-Khadra and D. Menscher and A. S. Kronfeld and P. B. Mackenzie and J. Simone},
journal= {arXiv preprint arXiv:hep-lat/0510072},
year = {2010}
}
Comments
6 pages, 6 figures, presented at Lattice2005(Heavy quark physics), Dublin, July 25-30, 2005, to appear in Proceedings of Science