Bound states and perturbation theory

Paul Hoyer

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arXiv · 1911.07286

Bound states and perturbation theory

Paul Hoyer

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Abstract

A perturbative expansion for QED and QCD bound states is formulated in $A^0=0$ gauge. The constituents of each Fock state are bound by their instantaneous interaction. In QCD an O($\alpha_s^0$) confining potential arises from a homogeneous solution of Gauss' constraint. The potential is uniquely determined by the QCD action, up to a universal scale. The Cornell potential is reproduced for quarkonia, and corresponding ones found for higher Fock states, baryons and glueballs.

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Paul Hoyer. 2019-11-17. Bound states and perturbation theory. https://arxiv.org/abs/1911.07286

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