Multifragmentation of very heavy nuclear systems (III): fragment velocity correlations and event topology at freeze-out

G. Tãbãcaru; M. -F. Rivet; B. Borderie; M. Pârlog; B. Bouriquet; A. Chbihi; J. D. Frankland; J. -P. Wieleczko; the INDRA Collaboration Collaboration

doi:10.1016/j.nuclphysa.2005.08.019

arXiv · nucl-ex/0508033

Multifragmentation of very heavy nuclear systems (III): fragment velocity correlations and event topology at freeze-out

G. Tãbãcaru·M. -F. Rivet·B. Borderie·M. Pârlog·B. Bouriquet·A. Chbihi·J. D. Frankland·J. -P. Wieleczko·the INDRA Collaboration Collaboration

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Abstract

Kinetic energy spectra and fragment velocity correlations, simulated by means of stochastic mean-field calculations, are successfully confronted with experimental data for single multifragmenting sources prepared at the same excitation energy per nucleon in 32 AMeV 129Xe+natSn and 36 AMeV 155Gd+natU central collisions. Relying thus on simulations, average freeze-out times of 200-240 fm/c are estimated The corresponding spatial distributions of fragments are more compact for the lighter system (~3-4V\_0 vs ~8V\_0).

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G. Tãbãcaru, M. -F. Rivet, B. Borderie, M. Pârlog, B. Bouriquet, A. Chbihi, J. D. Frankland, J. -P. Wieleczko, the INDRA Collaboration Collaboration. 2005-08-26. Multifragmentation of very heavy nuclear systems (III): fragment velocity correlations and event topology at freeze-out. https://doi.org/10.1016/j.nuclphysa.2005.08.019

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