Continuum QRPA response for deformed neutron-rich nuclei
Abstract
We discuss properties of the quadrupole collective excitation of the deformed neutron-rich nucleus Mg within the framework of quasi-particle random phase approximation (QRPA). We first solve the coupled-channels equations to obtain the single-particle levels, and construct the ground state by treating the pairing correlations in the BCS approximation. We then solve the QRPA equation using the response function formalism, by including the continuum spectra with the box dicscretization method. We show that the collectivity of the gamma vibration (the lowest mode) is significantly enhanced if protons and neutrons have different deformations. We also discuss an attempt towards full continuum QRPA calculations for deformed nuclei.
Cite
@article{arxiv.nucl-th/0307078,
title = {Continuum QRPA response for deformed neutron-rich nuclei},
author = {K. Hagino and Nguyen Van Giai and H. Sagawa},
journal= {arXiv preprint arXiv:nucl-th/0307078},
year = {2015}
}
Comments
8 pages, 2 eps figures. Use espcrc1.sty. A talk given at the International Conference on Collective Motion in Nuclei Under Extreme Conditions (COMEX1), June 10 - 13, 2003, Paris, France. To be published in the proceedings (Nucl. Phys. A)