Small x divergences in a heavy quark-antiquark state

Details Small x divergences in a heavy quark-antiquark state Small x divergences in a heavy quark-antiquark state

2001-11-29

arxiv.org/abs/hep-ph/0111388v1

Nucl.Phys.Proc.Suppl. 108 (2002) 173-175

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pgs. Talk, originally entitled "Die Hard with Vengence", presented at the Int. Light-Cone Workshop "Light-Cone Physics: Part

Scientific paper

10.1016/S0920-5632(02)01324-5

With the current state of similarity renormalisation group approach to light-front QCD, it is possible to address with a degree of generality the issue of light-cone zero modes. We find, contrary to earlier results in a less general framework, that infrared divergences associated with the zero modes do not cancel out in a color singlet heavy quark-antiquark states, except for the lowest order in the nonrelativistic expansion.

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