Cooling dynamics in multi-fragmentation processes

Fragment energy spectra of neutron-deficient isotopes are significantly more energetic than those of neutron-rich isotopes of the same element. This trend is well beyond what can be expected for the bulk multi-fragmentation of an equilibrated system. It can be explained, however, if some of these fr...

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Veröffentlicht in:	Europhysics letters 2006-06, Vol.74 (5), p.806-812
Hauptverfasser:	Liu, T. X, Lynch, W. G, Goethem, M. J. van, Liu, X. D, Shomin, R, Tan, W. P, Tsang, M. B, Verde, G, Wagner, A, Xi, H. F, Xu, H. S, Friedman, W. A, Souza, S. R, Donangelo, R, Beaulieu, L, Davin, B, Larochelle, Y, Lefort, T, Souza, R. T. de, Yanez, R, Viola, V. E, Charity, R. J, Sobotka, L. G
Format:	Artikel
Sprache:	eng
Schlagworte:	24.10.Pa 25.70.Pq
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Fragment energy spectra of neutron-deficient isotopes are significantly more energetic than those of neutron-rich isotopes of the same element. This trend is well beyond what can be expected for the bulk multi-fragmentation of an equilibrated system. It can be explained, however, if some of these fragments are emitted earlier through the surface of the system while it is expanding and cooling.
ISSN:	0295-5075 1286-4854
DOI:	10.1209/epl/i2006-10040-x