Search for a long lived component in the reaction U+U near the Coulomb barrier

Journal Article · Mon Feb 26 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2713501· OSTI ID:21056782

Villari, A C. C.; Golabek, C; Mittig, W; Boilley, D; De France, G; Gaudefroy, L; Marchix, A; Morjean, M; Navin, A; Rejmund, F; Rejmund, M; Roussel-Chomaz, P; Stodel, C ^[1]; Heinz, S; Winkler, M ^[2]; Bhattacharyya, S; Mukherjee, G ^[3]; Dayras, R; Drouart, A ^[4]; Giot, L ^[5]

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1. GANIL (IN2P3/CNRS - DSM/CEA) B.P. 55027 14076 Caen Cedex 5 (France)
2. GSI Planckstr. 1 64291 Darmstadt (Germany)
3. VEC Center I/AF Bidhan Nagar Kolkata 700064 (India)
4. SPhN - CEA/DSM/DAPNIA Gif sur Yvette Cedex (France)
5. SUBATECH, 4 rue Alfred Kastler B.P. 20722 44307 Nantes CEDEX 3 (France)

We performed an experiment to search for a signature of a long living component in the collision of 238U + 238U between 6.09 and 7.35A MeV. The experiment was performed at GANIL using the spectrometer VAMOS, tuned for observing reactions with kinematics similar to fusion-fission events. Theoretical calculations indicate that if a long living component would exist for this reaction, the most probable fission channel of such a giant system would be via the emission of quasi-lead nuclei. We detected events of such a category in the focal plane of VAMOS. These events present an excitation function growing as a function of the bombarding energy.

• OSTI ID: 21056782
• Journal Information: AIP Conference Proceedings, Vol. 891, Issue 1; Conference: 6. Symposium on nuclear physics, Tours (France), 5-8 Sep 2006; Other Information: DOI: 10.1063/1.2713501; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB FIELD
EXCITATION FUNCTIONS
FISSION
GANIL CYCLOTRON
HEAVY ION FUSION REACTIONS
MAGNETIC SPECTROMETERS
MEV RANGE
URANIUM 238 REACTIONS
URANIUM 238 TARGET