Charmonium spectrum from quenched QCD with overlap fermions

S. Tamhankar, A. Alexandru, Y. Chen, S. J. Dong, T. Draper, I. Horváth, F. X. Lee, K. F. Liu, N. Mathur, J. B. Zhang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We present preliminary results using overlap fermions for the charmonium spectrum, in particular for hyperfine splitting. Simulations are performed on 163 × 72 lattices, with Wilson gauge action at β = 6.3345. Depending on how the scale is set, we obtain 104(5) MeV (using 1P̄ - 1S̄) or 88(4) MeV (using r0 = 0.5 fm) for the hyperfine splitting.

Original languageEnglish
Pages (from-to)434-436
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
Issue numberSPEC. ISS.
StatePublished - Mar 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics


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