Critical excitation energy in fusion-evaporation reactions

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.R5· OSTI ID:6901727

Bohne, W; Morgenstern, H; Grabisch, K; Nakagawa, T; Proschitzki, S ^[1]

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1. Hahn-Meitner-Institut Berlin GmbH, Bereich Kern- und Strahlenphysik, 1000 Berlin 39, Germany (DE)

The widths of the residue-mass distributions are used as a measure of the excitation energy of hot nuclei. They increase with the recoil velocity but saturate much below the calculated velocity {ital v}{sub CN} for complete fusion. Above these critical excitations energies (4.5--6.4 MeV/nucleon) derived from the recoil velocity, the normal evaporation of nucleons and small clusters disappears, if a hot and equilibrated compoundlike nucleus is formed at all.

• OSTI ID: 6901727
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:1; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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