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arXiv · hep-ph/9906246

Off Mass Shell Effects in Hadron Electric Dipole Moments

M. B. Hecht·B. H. J. McKellar
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Abstract

We note that off the quark mass shell the operators $(p_i+p_f)_μγ_5$ and $iσ_{μν}(p_i -p_f)^νγ_5$, both of which reduce to $-\vecσ\cdot\vec{E}$ in the non-relativistic limit, are no longer identical. In this paper we explore the effects of this difference in the contribution of these quark electric moments to hadronic electric moments.

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M. B. Hecht, B. H. J. McKellar. 1999-06-04. Off Mass Shell Effects in Hadron Electric Dipole Moments. https://doi.org/10.1103/physrevc.60.065202

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