Dynamical production of intermediate-mass fragments in peripheral 209Bi+136Xe collisions at Elab A=28 MeV

J. Tõke, B. Lott, S. P. Baldwin, B. M. Quednau, W. U. Schröder, L. G. Sobotka, J. Barreto, R. J. Charity, L. Gallamore, D. G. Sarantites, D. W. Stracener, R. T. De Souza

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Abstract

Intermediate-mass fragments (IMF) from the reaction 209Bi+136Xe at Elab A=28 MeV have been measured in coincidence with other charged reaction products, as well as with neutrons. The IMF emission patterns are seen to exhibit signatures of two mechanisms - statistical emission from the fully accelerated massive reaction partners and a fast dynamical emission from a single effective source. The latter mechanism, possibly involving a multiple neck rupture, becomes dominating for least dissipative collisions characterized by low associated light particle multiplicities.

Original languageEnglish
Pages (from-to)519-524
Number of pages6
JournalNuclear Physics A
Volume583
Issue numberC
DOIs
StatePublished - Feb 6 1995
Externally publishedYes

Funding

This work was supported by the U.S. Department of Energy grants No.DE-FG02-88ER40414 (University of Rochester), DE-FG02-87ER403160 and DE-FG02-88ER40406 (Washington University), and by the National Science Foundation grants No. PHY-89-13815 (NSCL).

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