束缚态和微扰理论

Proceedings of Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions — PoS(LC2019) Pub Date : 2019-11-17 DOI:10.22323/1.374.0046

P. Hoyer

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引用次数: 0

摘要

在$A^0=0$规范中给出了QED和QCD束缚态的微扰展开式。每个Fock状态的成分都被它们的瞬时相互作用所束缚。在QCD中，O($\alpha_s^0$)约束势由高斯约束的齐次解产生。这种潜力是唯一由QCD行动决定的，直到一个普遍的规模。康奈尔势在夸子中得到了再现，在更高的Fock态、重子和胶球中也发现了相应的康奈尔势。

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Bound states and Perturbation theory

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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Proceedings of Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions — PoS(LC2019)

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