The QCD static potential in 2+1 dimensions at weak coupling

被引：0

作者：

Stahlhofen, Maximilian ^{[1
,2
]}

机构：

[1] Univ Autonoma Barcelona, Fis Teor Grp, E-08193 Barcelona, Spain

[2] Univ Autonoma Barcelona, IFAE, E-08193 Barcelona, Spain

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2010年 / 207-08卷

关键词：

static potential; 2+1 dimensions; pNRQCD; ultrasoft corrections; LIMIT; NRQCD;

D O I：

10.1016/j.nuclphysbps.2010.10.097

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：

Using the effective theory pNRQCD we determine the potential energy of a color singlet quark-antiquark pair with (fixed) distance r in three space-time dimensions at weak coupling (alpha r << 1). The precision of our result reaches O(alpha(3)r(2)), i.e. NNLO in the multipole expansion, and NNLL in a alpha/Delta V expansion, where Delta V similar to alpha In(alpha r). We even include all logarithmic terms up to (NLL)-L-4 order and compare the outcome to existing lattice data.

引用

页码：375 / 378

页数：4

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