Bochum 1998 – wissenschaftliches Programm
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HK: Hadronen und Kerne
HK 17: Giant Resonances
HK 17.4: Vortrag
Montag, 16. März 1998, 18:30–18:45, E
Giant Octupole Resonance Simulations — •R. Walke1, K. Morawetz1, P. Schuck2, U. Fuhrmann1, and G. Röpke1 — 1FB Physik, Universität Rostock, Universitätsplatz 3, D-18051 Rostock — 2Institut de Sciences Nucléaires, Université Joseph Fourier, CNRS-IN2P3, 53 Avenue des Martyrs, F-38026 Grenoble Cedex, France
Using a pseudoparticle simulation technique we are able to simulate large amplitude isoscalar octupole excitations in a finite nuclear system. We want to test the hypothesis by Swiatecki and coworkers that octupole motion should be overdamped [1,2]. Dependent on the initialization we can either observe clear octupole modes or overdamped octupole modes which decay immediately into quadrupole ones. We propose that octupole modes should be observed in central asymmetric collisions of heavy ions with mass relation 3:7.
[1] W. Bauer, D. McGrew, V. Zelevinsky, and P. Schuck, Phys. Rev. Lett. 72 (1994) 3771
[2] J.Blocki, J. Skalski, W.J. Swiatecki, Nucl. Phys. A816 (1997) 1