Two component theory and electron magnetic moment

Details Two component theory and electron magnetic moment Two component theory and electron magnetic moment

1997-12-23

arxiv.org/abs/hep-th/9712216v1

Acta Phys.Polon. B29 (1998) 783-798

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, tex, gz-compressed tar file

Scientific paper

The two-component formulation of quantum electrodynamics is studied. The relation with the usual Dirac formulation is exhibited, and the Feynman rules for the two-component form of the theory are presented in terms of familiar objects. The transformation from the Dirac theory to the two-component theory is quite amusing, involving Faddeev-Popov ghost loops of a fermion type with bose statistics. The introduction of an anomalous magnetic moment in the two-component formalism is simple; it is not equivalent to a Pauli term in the Dirac formulation. Such an anomalous magnetic moment appears not to destroy the renormalizability of the theory but violates unitarity.

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