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arXiv · hep-ph/9709479

Effects of Massive Gluons on Quarkonia in Light-Front QCD

Martina M. Brisudova·Sergio Szpigel·Robert J. Perry
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Abstract

A constituent parton picture of hadrons with logarithmic confinement arises naturally in light-front QCD when the hamiltonian is computed using a perturbative renormalization group; however, rotational symmetry is not manifest as a simple kinematic symmetry. Relevant operators must typically be fine-tuned when a perturbative renormalization group is used, and in light-front field theory such operators contain functions of longitudinal momenta. We explore the possibility that a gluon mass operator with simple longitudinal momentum dependence may improve approximate kinematic rotational symmetry, as revealed by the potential between heavy quarks.

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Martina M. Brisudova, Sergio Szpigel, Robert J. Perry. 1997-09-29. Effects of Massive Gluons on Quarkonia in Light-Front QCD. https://doi.org/10.1016/s0370-2693(97)01556-6

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