Dissipative effects in the formation of the {sup 156}Er compound nucleus

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.56.908· OSTI ID:528173

Liang, J F; Bierman, J D; Kelly, M P; Sonzogni, A A; Vandenbosch, R; van Schagen, J P ^[1]

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1. Nuclear Physics Laboratory, Box 354290, University of Washington, Seattle, Washington 98195 (United States)

Light-charged particles were measured in coincidence with evaporation residues for {sup 12}C+{sup 144}Sm, {sup 35}Cl+{sup 121}Sb, and {sup 60}Ni+{sup 96}Zr reactions which populate the compound nucleus {sup 156}Er at the same excitation energy. The particle spectral shape for {sup 12}C+{sup 144}Sm is harder than the other two reactions. A one-body dissipation model predicts that the fusion times for the {sup 35}Cl- and {sup 60}Ni-induced reactions are similar and are about twice as long as that of the {sup 12}C-induced reaction. Statistical model calculations considering particle evaporation during compound nucleus formation successfully reproduce the particle spectra for all the reactions. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 528173
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 56; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIMONY 121 TARGET
CARBON 12 REACTIONS
CHARGED PARTICLES
CHLORINE 35 REACTIONS
COMPOUND NUCLEI
ERBIUM 156
EVAPORATION
EXCITATION
HEAVY ION FUSION REACTIONS
NICKEL 60 REACTIONS
SAMARIUM 144 TARGET
SPECTRA
STATISTICAL MODELS
ZIRCONIUM 96 TARGET