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Multipole Expansion for Relativistic Coulomb Excitation

H. Esbensen·C. A. Bertulani
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Abstract

We derive a general expression for the multipole expansion of the electro-magnetic interaction in relativistic heavy-ion collisions, which can be employed in higher-order dynamical calculations of Coulomb excitation. The interaction has diagonal as well as off-diagonal multipole components, associated with the intrinsic and relative coordinates of projectile and target. A simple truncation in the off-diagonal components gives excellent results in first-order perturbation theory for distant collisions and for beam energies up to 200 MeV/nucleon.

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H. Esbensen, C. A. Bertulani. 2001-11-17. Multipole Expansion for Relativistic Coulomb Excitation. https://doi.org/10.1103/physrevc.65.024605

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