Relativistic Bottomonium Spectrum from Anisotropic Lattices

Details Relativistic Bottomonium Spectrum from Anisotropic Lattices Relativistic Bottomonium Spectrum from Anisotropic Lattices

2001-11-24

arxiv.org/abs/hep-lat/0111049v1

Phys.Rev. D65 (2002) 074508

Physics

High Energy Physics

High Energy Physics - Lattice

20 pages, 11 figures

Scientific paper

10.1016/S0920-5632(01)01716-9

We report on a first relativistic calculation of the quenched bottomonium spectrum from anisotropic lattices. Using a very fine discretisation in the temporal direction we were able to go beyond the non-relativistic approximation and perform a continuum extrapolation of our results from five different lattice spacings (0.04-0.17 fm) and two anisotropies (4 and 5). We investigate several systematic errors within the quenched approximation and compare our results with those from non-relativistic simulations.

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