Scaling study of the relativistic corrections to the static potential

Understand

The relativistic corrections to the static potential, i.e.

• the O(1/m) correction, the O(1/m^2) spin-dependent and momentum-dependent corrections are investigated in SU(3) lattice gauge theory.
• These corrections are relevant ingredients of an effective field theory for heavy quarkonium called potential nonrelativistic QCD.
• Utilizing the multilevel algorithm for the field strength correlator on the quark-antiquark source, these corrections are determined at the distances ranged from 0.25 to 1.2 fm.