Two component theory and electron magnetic moment

M. Veltman

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arXiv · hep-th/9712216

Two component theory and electron magnetic moment

M. Veltman

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Abstract

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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M. Veltman. 1997-12-23. Two component theory and electron magnetic moment. https://arxiv.org/abs/hep-th/9712216

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