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

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

2010-09-22

arxiv.org/abs/1009.4237v1

Nucl.Phys.Proc.Suppl.207-208:375-378,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures; Talk given at QCD 10 - 15th International QCD Conference, 28th June - 3rd July, Montpellier (France); to a

Scientific paper

10.1016/j.nuclphysbps.2010.10.09

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/DeltaV expansion, where Delta V ~ alpha ln(alpha r). We even include all logarithmic terms up to N^4LL order and compare the outcome to existing lattice data.

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