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.
复制标题
海夸克效应在晶格 QCD 强耦合常数中的表现。
DOI:
10.1103/physrevlett.74.22
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发表时间:
1994
影响因子:
8.6
通讯作者:
A. Ukawa
中科院分区:
文献类型:
--
作者:
S. Aoki;M. Fukugita;S. Hashimoto;N. Ishizuka;H. Mino;M. Okawa;T. Onogi;A. Ukawa
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] (5)/MS ([ital M][sub [ital Z]]) ([bar M][bar S] denotes the modified minimal subtraction scheme) is made employing the charmonium 1[ital S]-1[ital P] mass splitting calculated on full QCD configurations generated with two flavors of dynamical Kogut-Susskind quarks to fix the scale.