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Gauge invariance on bound state energy levels

A. Vairo
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Abstract

In this paper the problem of the gauge in a bound state calculation is discussed. In particular, in order to verify the gauge invariance in the energy levels expansion, some set of gauge invariant contributions are given.

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A. Vairo. 1996-09-05. Gauge invariance on bound state energy levels. https://arxiv.org/abs/hep-ph/9609264

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