QCD in a finite box:: numerical test studies in the three Leutwyler-Smilga regimes

被引：5

作者：

Dürr, S ^{[1
]}

机构：

[1] Paul Scherrer Inst, Theory Grp, CH-5232 Villigen, Switzerland

来源：

NUCLEAR PHYSICS B | 2001年 / 594卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(00)00658-1

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The Leutwyler-Smilga prediction regarding the (ir)relevance of the global topological charge for QCD in a finite box is subject to a test. To this end the lattice version of a suitably chosen analogue (massive 2-flavour Schwinger model) is analyzed in the small (V Sigmam much less than 1), intermediate (V Sigmam similar or equal to 1) and large (V Sigmam much greater than 1) Leutwyler-Smilga regimes. The predictions for the small and large regimes an confirmed and illustrated. New results about the role of the functional determinant in all three regimes and about the sensitivity of physical observables on the topological charge in the intermediate regime are presented, (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：420 / 438

页数：19

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