标题： QCD中的短弦与新物理展望 显示英文标题

标题： Short Strings and New Physics Perspectives in QCD

摘要： 在（对偶）阿贝尔-希格斯模型中，束缚弦在短距离内不会消失，而是变成短的束缚弦。在我们讨论的紧凑型三维电动力学中，束缚弦同样会在短距离下表现出异常的幂次修正，违背算符乘积展开的标准规则。在最有趣的QCD情形中，尚未推导出短的束缚弦，我们转向现象学以寻找支持或反对其存在的证据。QCD中的短束缚弦导致非标准的幂次修正。对现有数据的分析（包括数值模拟和真实实验）得出的初步结论是，这种新的幂次修正至少在1-2GeV的质量尺度上存在。 显示英文摘要

摘要： Within the (dual) Abelian Higgs model, confining strings do not disappear at small distances but rather become short strings. In compact 3D electrodynamics, as we argue here, the confining strings are also manifested at small distances in unusual power corrections, disobeying the standard rules of the Operator Product expansion. In the most interesting case of QCD, there is yet no derivation of short strings and we turn to phenomenology to find evidence pro or contra their existence. The short strings in QCD lead to non-standard power corrections. A tentative conclusion of the analysis of existing data, both in numerical simulations and in real experiments, is that the novel power corrections are present, at least at the mass scale of 1-2 GeV.