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Emission of unbound 8Be and 12C * (0+ 2) clusters in compound nucleus reactions |
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| Authors: | Tz. Kokalova W. von Oertzen S. Torilov S. Thummerer M. Milin A. Tumino G. de Angelis E. Farnea A. Gadea D. R. Napoli Th. Kröll N. Marginean T. Martinez M. Axiotis S. M. Lenzi C. Ur P. Papka M. Rousseau |
| Affiliation: | (1) Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, D-14195 Berlin, Germany;(2) Hahn-Meitner-Institut Berlin, Glienicker Straße 100, D-14109 Berlin, Germany;(3) Rudheight 0.09ex width 0.315emer Bo!["scaron"]("/content/5nv5mbvar3vxa2qg/xlarge353.gif") kovi!["cacute"]("/content/5nv5mbvar3vxa2qg/xlarge263.gif") Institute, Zagreb, Croatia;(4) INFN-Laboratori Nazionali del Sud and Università di Catania, Catania, Italy;(5) INFN-Laboratori Nazionali di Legnaro, Legnaro, Italy;(6) Dipartimento di Fisica and INFN, Padova, Italy;(7) Institut de Recherches Subatomiques, IReS, Strasbourg, France |
| Abstract: | We have studied the emission of light unbound clusters, 8Be and 12C * (0+2), in the reactions 18O + 13C  {31} Si {23} Ne + 8Be and 28Si + 24Mg {52} Fe {40} Ca + 12C * (0+2). The  -ray spectra obtained in coincidence with 8Be and 12C * (0+2) emission have been studied relative to the statistical emission of two or three  -particles. The angular-momentum-to-energy balance of the cluster emission is compared with that of multiple- emission. The properties of the energy spectra of the binary process and the population of the residual nuclei by cluster emission are discussed. It is observed that cluster emission carries away less excitation energy on average than the sequential emission of the individual components. |
| Keywords: | 21.60.Gx Cluster models 23.90.+w Other topics in radioactive decay and in-beam spectroscopy 25.70.Gh Compound nucleus 25.70.Pq Multifragment emission and correlations |
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