Abstract
Collective excitations of infinite nuclear matter are investigated within the framework of the Landau theory of normal Fermi liquids. Numerical results are obtained using the existing sets of the Landau parameters of the quasi-particle interaction in nuclear matter. In the hydrodynamic regime all possible modes of the collective vibrations of the breathing, isospin, spin and spin-isospin type can be excited. In the collisionless regime the breathing mode is strongly damped, and only the longitudinal isospin, spin, and spin-isospin modes may propagate, the velocity of propagation being slightly greater than the quasi-particle velocity at the Fermi surface.
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Chercheur I.I.S.N.
On leave of absence from the Institute of Theoretical Physics, Warsaw University, Hoza 69, PL-00-681 Warszawa, Poland.
The author expresses his gratitude to Professor C. Mahaux for the hospitality extended to him at the Institute of Physics of the University of Liège and for reading the manuscript. He is also indebted to Professor J. Dabrowski from the Institute of Nuclear Research in Warsaw for reading the manuscript.
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Haensel, P. Collective excitations of nuclear matter. Z Physik A 277, 65–70 (1976). https://doi.org/10.1007/BF01547503
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DOI: https://doi.org/10.1007/BF01547503