Off Mass Shell Effects in Hadron Electric Dipole Moments
M. B. Hecht, B. H. J. McKellar
Abstract
We note that off the quark mass shell the operators (pi+pf)μγ5 and iσμν(pi -pf)νγ5, both of which reduce to -σ·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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