Tracking dissipation in capture reactions

Journal Article · Mon Apr 12 00:00:00 EDT 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1737105· OSTI ID:20627557

Materna, T; Bouchat, V; Kinnard, V; Hanappe, F ^[1]; Dorvaux, O; Stuttge, L ^[2]; Schmitt, C ^[2]; GSI, Darmstadt ^[3]; Siwek-Wilczynska, K ^[4]; Aritomo, Y ^[5]; Bogatchev, A; Prokhorova, E ^[5]; Ohta, M ^[6]

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1. PNTPM, Universite Libre de Bruxelles, Brussels (Belgium)
2. Institut de Recherches Subatomiques, Strasbourg (France)
3. Germany
4. Warsaw University, Warsaw (Poland)
5. Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna (Russian Federation)
6. Kobe University, Kobe (Japan)

Nuclear dissipation in capture reactions is investigated using backtracing. Combining the analysis procedure with dynamical models, the difficult and long-standing problem of competition and mixing of quasi-fission and fusion-fission is solved for the first time. At low excitation energy a new protocol able to handle low statistics data gives access to the precession neutron multiplicity in two different systems 48Ca + 208Pb, Pu. The results are in agreement with a domination of fusion-fission in the case of 256No and an equal mixing of quasi-fission and fusion-fission in the case of Z = 114. The nature of the relevant dissipation is determined as one-body dissipation.

• OSTI ID: 20627557
• Journal Information: AIP Conference Proceedings, Vol. 704, Issue 1; Conference: 5. Tours symposium on nuclear physics, Tours (France), 26-29 Aug 2003; Other Information: DOI: 10.1063/1.1737105; (c) 2004 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
CALCIUM 48
CALCIUM 48 REACTIONS
CAPTURE
DAMPING
DEEP INELASTIC HEAVY ION REACTIONS
ELEMENT 114
EXCITATION
FISSION
FISSION PRODUCTS
HEAVY ION FUSION REACTIONS
LEAD 208
LEAD 208 TARGET
MIXING
MULTIPLICITY
NEUTRONS
NOBELIUM 256
PLUTONIUM 239 TARGET
QUASI-FISSION
STOCHASTIC PROCESSES