Thumbnail
Access Restriction
Open

Author Hamamoto, I. ♦ Sagawa, H.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ OXYGEN 28 ♦ RESPONSE FUNCTIONS ♦ STRENGTH FUNCTIONS ♦ NUCLEI ♦ HARTREE-FOCK METHOD ♦ NEUTRONS ♦ RANDOM PHASE APPROXIMATION ♦ MONOPOLES ♦ DIPOLES ♦ EXCITATION ♦ ENERGY ♦ BINDING ENERGY ♦ ANGULAR MOMENTUM
Abstract The very low-energy transition strength unique in neutron drip line nuclei is studied, taking an example of {sub 8}{sup 28}O{sub 20} and performing the Hartree-Fock plus RPA calculation with Skyrme interaction. The most dramatic example is monopole modes, however, an appreciable amount of isovector dipole strength may appear also in the very low excitation energy. Unperturbed response functions are carefully studied, which contain all basic information on the exotic behavior of the RPA strength function. The low-energy transition strength is induced by the excitations of neutrons, which have smaller binding energies and smaller angular momenta. The neutrons with a few MeV binding energies are sufficient for obtaining this strength, and the phenomena are differentiated from the so-called soft multipole excitations in halo nuclei. {copyright} {ital 1996 The American Physical Society.}
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-04-01
Publisher Place United States
Journal Physical Review, C
Volume Number 53
Issue Number 4


Open content in new tab

   Open content in new tab