Observation of a saturation in the timescale for multifragment emission in symmetric heavy ion collisions

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Bulletin of the American Physical Society

OSTI ID:387243

Lacey, R; Bauge, E; Elmaani, A; Lauret, J ^[1]

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1. and others

We have measured two-fragment reduced-velocity correlation functions of the intermediate mass fragments (IMF: 3 {le} Z {le} 7) produced in multifragment final states for the Kr + Nb system (E/A = 35, 45, 55, 65, and 75 MeV). From the measured correlation functions we extract mean IMF emission lifetimes ({tau}) which are observed to decrease from {tau} {approximately} 400 fm/c at E/A = 35 MeV to {tau} {approximately} 125 fm/c at E/A = 55 MeV. For beam energies in excess of E/A 55 MeV, no further decrease in {tau} is observed, indicating a possible saturation of the mean emission lifetime for IMF produced in multifragment exit channels.

• OSTI ID: 387243
• Report Number(s): CONF-931044--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 9 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FISSION FRAGMENTS
HEAVY ION REACTIONS
KRYPTON
MEV RANGE 10-100
NIOBIUM
NUCLEAR FRAGMENTATION