Decoupling and coherence in $\mth{E1}$ and $\mth{E2}$ moments in drip line nuclei

H. Sagawa

doi:doi:10.1140/epja1339-14

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Hadrons and Nuclei

Eur. Phys. J. A 13, 87-92 (2002)

Decoupling and coherence in $\mth{E1}$ and $\mth{E2}$ moments in drip line nuclei

H. Sagawa

Center for Mathematical Sciences, University of Aizu, Aizu-Wakamatsu, Fukushima 965-8580, Japan

(Received: 1 May 2001)

Abstract
I discuss first the effect of decoupling of extended wave functions and the coherence in the low-energy E1 strength in drip line nuclei ¹²Be and ¹³O, which are studied by large-scale shell model calculations including 3 $\hbar \omega$ configuration space. The calculated results are compared to recent experimental data of Coulomb excitations. The quenching of the core polarization charges in drip line nuclei is also discussed in relation to recent observations of quadrupole moments in B-isotopes.

PACS
21.10.Ky - Electromagnetic moments.
21.60.Jz - Hartree-Fock and random-phase approximations.
23.20.-g - Electromagnetic transitions.

© Società Italiana di Fisica, Springer-Verlag 2002