Mass dependence of the heavy quark potential and its effects on quarkonium states

Details Mass dependence of the heavy quark potential and its effects on quarkonium states Mass dependence of the heavy quark potential and its effects on quarkonium states

2011-08-29

arxiv.org/abs/1108.5591v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 3 figures, Proceedings XIV International Conference on Hadron Spectroscopy (hadron2011), 13-17 June 2011, Munich, Ger

Scientific paper

The heavy quark-antiquark potential is accessible in perturbative QCD and in lattice simulations. The perturbative short-distance part of the potential is contructed via a restricted Fourier transform, covering the momentum region where perturbative QCD is applicable. We show that for the leading order static term as well as for the mass dependent corrections, the perturbative part can be matched at intermediate distances with results from lattice QCD. From these matched potentials, quarkonium spectra with a single free parameter (the heavy quark mass) are derived and compared with empirical spectra. Furthermore, charm and bottom quark masses are deduced.

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