Dissipation effects in cluster fission

The fission of Sr(2+)(n) is studied from time-of-flight (TOF) measurements. The TOF acts both as a mass spectrometer and as a velocity dispersion analyzer. Evidence of the postfission ejection of a fast neutral atom is shown. It is explained assuming a strong deformation of the fissioning system at...

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Bibliographic Details
Published in:Physical review letters 2004-02, Vol.92 (8), p.083401-083401, Article 083401
Main Authors: Bréchignac, C, Cahuzac, Ph, Concina, B, Leygnier, J
Format: Article
Language:English
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Summary:The fission of Sr(2+)(n) is studied from time-of-flight (TOF) measurements. The TOF acts both as a mass spectrometer and as a velocity dispersion analyzer. Evidence of the postfission ejection of a fast neutral atom is shown. It is explained assuming a strong deformation of the fissioning system at the transition state. The relaxation of the deformation energy into vibrations promotes the evaporation of the large fragment.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.92.083401