Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1995-06-22
Phys.Rev. D52 (1995) 6519-6529
Physics
High Energy Physics
High Energy Physics - Lattice
23 pages uuencoded latex file. Contains figures in latex
Scientific paper
10.1103/PhysRevD.52.6519
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 $\chi_c$ fine structure. Agreement with experiment is good - the remaining systematic errors are discussed.
Davies Christine. T. H.
Hornbostel Kent
Lepage Peter G.
Lidsey A. J.
Shigemitsu Junko
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