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Small x divergences in the Similarity RG approach to LF QCD

Martina Brisudova
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Abstract

We study small x divergences in boost invariant similarity renormalization group approach to light-front QCD in a heavy quark-antiquark state. With the boost invariance maintained, the infrared divergences do not cancel out in the physical states, contrary to previous studies where boost invariance was violated by a choice of a renormalization scale. This may be an indication that the zero mode, or nontrivial light-cone vacuum structure, might be important for recovering full Lorentz invariance.

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Martina Brisudova. 2002-02-14. Small x divergences in the Similarity RG approach to LF QCD. https://doi.org/10.1142/s0217732302006308

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