Scaling laws and higher-order effects in Coulomb excitation of neutron halo nuclei

Details Scaling laws and higher-order effects in Coulomb excitation of neutron halo nuclei Scaling laws and higher-order effects in Coulomb excitation of neutron halo nuclei

2008-08-26

arxiv.org/abs/0808.3478v1

Eur.Phys.J.A38:355-361,2008

Physics

Nuclear Physics

Nuclear Theory

7 pages, 2 figures, submitted to European Physical Journal A

Scientific paper

10.1140/epja/i2008-10684-4

Essential properties of halo nuclei can be described in terms of a few low-energy constants. For neutron halo nuclei, analytical results can be found for wave functions and electromagnetic transition matrix-elements in simple but well-adapted models. These wave functions can be used to study nuclear reactions; an especially simple and instructive example is Coulomb excitation. A systematic expansion in terms of small parameters can be given. We present scaling laws for excitation amplitudes and cross sections. The results can be used to analyze experiments like ${}^{11}$Be Coulomb excitation. They also serve as benchmark tests for more involved reaction theories.

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