Light Quenched Hadron Spectrum and Decay Constants on different Lattices

Details Light Quenched Hadron Spectrum and Decay Constants on different Lattices Light Quenched Hadron Spectrum and Decay Constants on different Lattices

1996-11-22

arxiv.org/abs/hep-lat/9611021v2

Nucl.Phys. B489 (1997) 427-452

Physics

High Energy Physics

High Energy Physics - Lattice

36 pages, LateX with 20 postscript figures. Small numerical errors corrected, no conclusions changed

Scientific paper

10.1016/S0550-3213(97)00042-4

In this paper we study O(2000) (quenched) lattice configurations from the APE collaboration, for different lattice volumes and for 6.0 \le beta \le 6.4 using both the Wilson and the SW-Clover fermion actions. We determine the light hadronic spectrum and meson decay constants and study the mesonic dispersion relation. We extract the hadronic variable J and the strange quark mass in the continuum at the next-to-leading order obtaining m_s^{MSbar}(mu=2 GeV) = 122 +/- 20 MeV. A study is made of their dependence on lattice spacing. We implement a newly developed technique to extract the inverse lattice spacing using data at the simulated values of the quark mass (i.e. at masses around the strange quark mass).

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