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The Structure of Screening in QED

Emili Bagan·Martin Lavelle·David McMullan·Shogo Tanimura
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Abstract

The possibility of constructing charged particles in gauge theories has long been the subject of debate. In the context of QED we have shown how to construct operators which have a particle description. In this paper we further support this programme by showing how the screening interactions arise between these charges. Unexpectedly we see that there are two different gauge invariant contributions with opposite signs. Their difference gives the expected result.

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Emili Bagan, Martin Lavelle, David McMullan, Shogo Tanimura. 2001-07-30. The Structure of Screening in QED. https://doi.org/10.1103/physrevd.65.105004

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