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
收藏
页码：375 / 378
页数：4
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