Microscopic description of α+N bremsstrahlung by a Siegert approach

J. Dohet-Eraly
Phys. Rev. C 89, 024617 – Published 28 February 2014

Abstract

A microscopic cluster model of the nucleus-nucleus bremsstrahlung based on an extension of the Siegert theorem, i.e., based on the charge density rather than on the current, allows including implicitly a part of the effects of meson-exchange currents. This approach was developed in a previous paper for zero-spin nuclei and applied to the α+α bremsstrahlung. This model is extended to colliding nuclei with nonzero spins and applied to the α+p and α+n bremsstrahlungs. A comparison between the bremsstrahlung cross sections for these mirror systems is made. The importance of the meson-exchange currents on the α+N bremsstrahlungs is discussed by comparing the E1 and E2 components of the bremsstrahlung cross sections obtained in the Siegert approach where these currents are partly included and in the non-Siegert approach where they are fully neglected.

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  • Received 25 November 2013

DOI:https://doi.org/10.1103/PhysRevC.89.024617

©2014 American Physical Society

Authors & Affiliations

J. Dohet-Eraly*

  • Physique Quantique, C. P. 165/82, Physique Nucléaire Théorique et Physique Mathématique, C.P. 229, Université Libre de Bruxelles (ULB), B-1050 Brussels, Belgium and TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada

  • *jdoheter@triumf.ca

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Vol. 89, Iss. 2 — February 2014

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