A Dynamical Macroscopic Description of Isovector Giant Multipole States | Zendy

Shin-ya Nishizaki | Zendy; K. Andō | Zendy

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A Dynamical Macroscopic Description of Isovector Giant Multipole States

Author(s) -

Shin-ya Nishizaki,

K. Andō

Publication year - 1984

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.71.1263

Subject(s) - isovector , physics , multipole expansion , conservative vector field , scaling , classical mechanics , statistical physics , quantum electrodynamics , quantum mechanics , compressibility , nuclear physics , mechanics , nucleon , geometry , mathematics

An irrotational fiuiddynamical method based on the generalized scaling approximation is applied to the description of isovector giant multi pole states. For the case of a simple square density model for the ground state, analytic solutions of the equation of motion are derived and contrasted with those of the familiar hydrodynamical model. It is shown from model calculations that the present description provides a fair approximation to microscopic RPA results on gross features of isovector giant vibrations.

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