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arXiv · hep-lat/9506026

Precision Charmonium Spectroscopy From Lattice QCD

C. T. H. Davies·K. Hornbostel·G. P. Lepage·A. J. Lidsey·J. Shigemitsu·J. Sloan
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Abstract

We present results for Charmonium spectroscopy using Non-Relativistic QCD (NRQCD). For the NRQCD action the leading order spin-dependent and next to leading order spin-independent interactions have been included with tadpole-improved coefficients. We use multi-exponential fits to multiple correlation functions to extract ground and excited $S$ states. Splittings between the lowest $S$, $P$ and $D$ states are given and we have accurate values for the $S$ state hyperfine splitting and the $χ_c$ fine structure. Agreement with experiment is good - the remaining systematic errors are discussed.

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C. T. H. Davies, K. Hornbostel, G. P. Lepage, A. J. Lidsey, J. Shigemitsu, J. Sloan. 1995-06-22. Precision Charmonium Spectroscopy From Lattice QCD. https://doi.org/10.1103/physrevd.52.6519

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