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arXiv · hep-lat/9407015

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

S. Aoki·M. Fukugita·S. Hashimoto·N. Ishizuka·H. Mino·M. Okawa·T. Onogi·A. Ukawa
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Abstract

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 $α_{\overline{MS}}^{(5)}(M_Z)$ 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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S. Aoki, M. Fukugita, S. Hashimoto, N. Ishizuka, H. Mino, M. Okawa, T. Onogi, A. Ukawa. 1994-07-25. Manifestation of Sea Quark Effects in the Strong Coupling Constant in Lattice QCD. https://doi.org/10.1103/physrevlett.74.22

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