English

Charmonium spectrum from quenched QCD on anisotropic lattices

High Energy Physics - Lattice 2012-08-27 v1

Abstract

We present our final results of the charmonium spectrum in quenched QCD on anisotropic lattices. Simulations are made with the plaquette gauge action and a tadpole improved clover quark action employing ξ=as/at=3\xi = a_s/a_t = 3. We calculate the spectrum of S- and P-states and their excitation, and study the scaling behavior of mass splittings. Comparison is made with the experiment and previous lattice results. The issue of hyperfine splitting for different choices of the clover coefficients obtained by Klassen is discussed.

Keywords

Cite

@article{arxiv.hep-lat/0110129,
  title  = {Charmonium spectrum from quenched QCD on anisotropic lattices},
  author = {PACS Collaboration 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 V. Lesk and K. Nagai and M. Okamoto and M. Okawa and Y. Taniguchi and A. Ukawa and T. Yoshié},
  journal= {arXiv preprint arXiv:hep-lat/0110129},
  year   = {2012}
}

Comments

Lattice2001(heavyquark), 3 pages, 7 eps figures