Nuclear collective motions in a self-consistent Landau-Vlasov approach

Burgio, G.F.; Di Toro, M.

doi:10.1016/0375-9474(88)90480-0

Nuclear collective motions in a self-consistent Landau-Vlasov approach

1988

24 pages

Published in:

Nucl.Phys.A 476 (1988) 189-212

Published: 1988

DOI:

10.1016/0375-9474(88)90480-0

View in:

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Abstract: (Elsevier)

A semiclassical theory of nuclear collective motions based on the Vlasov equation is extended to take into account self-consistency effects provided by the residual interaction. Using separable forces a correlated response function is derived which has several striking similarities with fully quantum results. Explicit spin-orbit terms are also included through a clear WKB correspondence with the quantum response. Finite temperature effects are analysed showing little change in the strength distribution. Through a relaxation time approach two-body collision terms are introduced. This is essential to account for the damping widths of isoscalar quadrupole and octupole giant resonances. However a quite important interplay between self-consistent (Landau damping) and collisional damping is also revealed.

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Figures(0)

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