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arxiv: nucl-th/0202024 · v1 · submitted 2002-02-08 · ⚛️ nucl-th

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Collective Excitations and Pairing Effects in Drip-Line Nuclei -- Continuum RPA in Coordinate-Space HFB --

Masayuki Matsuo
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classification ⚛️ nucl-th
keywords continuumcoordinate-spacedrip-lineeffectsexcitationspairingaccountcalculations
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We discuss novel features of a new continuum RPA formulated in the coordinate-space Hartree-Fock-Bogoliubov framework. This continuum quasiparticle RPA takes into account both the one- and two-particle escaping channels. The theory is tested with numerical calculations for monopole, dipole and quadrupole excitations in neutron-rich oxygen isotopes near the drip-line. Effects of the particle-particle RPA correlation caused by the pairing interaction are discussed in detail, and importance of the selfconsistent treatment is emphasized.

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