Nuclear currents based on the integral form of the continuity equation

Details Nuclear currents based on the integral form of the continuity equation Nuclear currents based on the integral form of the continuity equation

1999-07-07

arxiv.org/abs/nucl-th/9907024v1

Phys.Rev.C60:044615,1999

Physics

Nuclear Physics

Nuclear Theory

19 pages, revtex, plus 2 PS figures

Scientific paper

10.1103/PhysRevC.60.044615

We present an approach to obtain new forms of the nuclear electromagnetic current, which is based on an integral form of the continuity equation. The procedure can be used to restore current conservation in model calculations in which the continuity equation is not verified. Besides, it provides, as a particular result, the so-called Siegert's form of the nuclear current, first obtained by Friar and Fallieros by extending Siegert's theorem to arbitrary values of the momentum transfer. The new currents are explicitly conserved and permit a straightforward analysis of their behavior at both low and high momentum transfers. The results are illustrated with a simple nuclear model which includes a harmonic oscillator mean potential.

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