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The effect of angular-momentum dissipation on fluctuations of excitation functions in heavy-ion collisions |
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| Authors: | S. Yu. Kun W. Nörenberg |
| Affiliation: | 1. Department of Physics and Mathematical Physics, University of Adelaide, Box 498 G.P.O., 5001, Adelaide, Australia 2. European Branch of L.D. Landau Institute at ISI Foundation, VI. Settimio Severo 65, I-10133, Torino, Italy 3. Dipartmento di Fisica Teorica, Universitá di Torino, Italy 4. Instituto Nazionale di Fisica Nucleare, Sezione di Torino, Via P. Giuria 1, I-10125, Torino, Italy |
| Abstract: | We discuss here the effect of dissipation of relative angular momentum on fluctuations of excitation functions in dissipative heavy-ion collisions. Dissipation and fluctuation of relative angular momentum modify and smooth the time-angle localization of the rotating dinuclear system. The secondary maxima in the energy correlation function of the cross-section shift to smaller values of the energy difference, the shift depending on the relaxation time and the diffusion coefficient for angular-momentum dissipation. The results are illustrated for the collision28Si(Elab=130 MeV)+48Ti.Partly supported by the Alexander von Humboldt Foundation |
| Keywords: | KeywordHeading" >PACS 25.70.Lm 24.60.-k |
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