We present the results of quenched charmonium spectrum for S- and P-states, obtained by a relativistic heavy quark method on anisotropic lattices. Simulations are carried out using the standard plaquette gauge action and a meanfield-improved clover quark action at at−1=3--6 GeV with the renormalized anisotropy fixed to ξ≡as/at=3. We study the scaling of our fine and hyperfine mass splittings, and compare with previous results.
@article{arxiv.hep-lat/0011005,
title = {Quenched charmonium spectrum on anisotropic lattices},
author = {PACS Collaboration and A. Ali Khan and S. Aoki and R. Burkhalter and S. Ejiri and M. Fukugita and S. Hashimoto and N. Ishizuka and Y. Iwasaki and K. Kanaya and T. Kaneko and Y. Kuramashi and K. -I. Nagai and M. Okamoto and M. Okawa and H. P. Shanahan and Y. Taniguchi and A. Ukawa and T. Yoshié},
journal= {arXiv preprint arXiv:hep-lat/0011005},
year = {2012}
}