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Quenched charmonium spectrum on anisotropic lattices

PACS Collaboration·A. Ali Khan·S. Aoki·R. Burkhalter·S. Ejiri·M. Fukugita·S. Hashimoto·N. Ishizuka·Y. Iwasaki·K. Kanaya·T. Kaneko·Y. Kuramashi·K. -I. Nagai·M. Okamoto·M. Okawa·H. P. Shanahan·Y. Taniguchi·A. Ukawa·T. Yoshié
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Abstract

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 $a_t^{-1} = 3$--6 GeV with the renormalized anisotropy fixed to $ξ\equiv a_s/a_t =3$. We study the scaling of our fine and hyperfine mass splittings, and compare with previous results.

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PACS Collaboration, A. Ali Khan, S. Aoki, R. Burkhalter, S. Ejiri, M. Fukugita, S. Hashimoto, N. Ishizuka, Y. Iwasaki, K. Kanaya, T. Kaneko, Y. Kuramashi, K. -I. Nagai, M. Okamoto, M. Okawa, H. P. Shanahan, Y. Taniguchi, A. Ukawa, T. Yoshié. 2000-11-01. Quenched charmonium spectrum on anisotropic lattices. https://doi.org/10.1016/s0920-5632(01)00951-3

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