Manifestation of Sea Quark Effects in the Strong Coupling Constant in Lattice QCD

Details Manifestation of Sea Quark Effects in the Strong Coupling Constant in Lattice QCD Manifestation of Sea Quark Effects in the Strong Coupling Constant in Lattice QCD

1994-07-25

arxiv.org/abs/hep-lat/9407015v1

Phys.Rev.Lett. 74 (1995) 22-25

Physics

High Energy Physics

High Energy Physics - Lattice

10 pages + 2 figures(postscript files), Latex files, compressed, uuencode tar file, UTHEP-280

Scientific paper

10.1103/PhysRevLett.74.22

We demonstrate that sea quark effects of a magnitude expected from renormalization group considerations are clearly visible in the strong coupling constant measured in current full QCD simulations. Building on this result an estimate of $\alpha_{\overline{MS}}^{(5)}(M_Z)$ is made employing the charmonium $1S-1P$ mass splitting calculated on full QCD configurations generated with two flavors of dynamical Kogut-Susskind quarks to fix the scale.

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