Rotational Energy and the Diffuseness of the Boundary between Fusion and Strongly Damped Collisions

Differences in the kinetic energies of the fragments produced in the scission of the pairs of similar composite nuclei Cu-59/Zn-60 and Y-83/Zr-88 are interpreted as resulting from angular momentum fractionation. The energies indicate that some partial waves with angular momenta 10 to 15 h/(2 pi) bel...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1980-09, Vol.45 (9), p.696-699
Hauptverfasser:	Adler, L., Gonthier, P., Ho, J. H. K., Khodai, A., Namboodiri, M. N., Natowitz, J. B., Simon, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	651425 - Nuclear Properties & Reactions, A=20-38, Experimental- Nuclear Reactions & Scattering- (-1987) 651523 - Nuclear Properties & Reactions, A=39-58, Experimental- Energy Levels & Transitions- (-1987) 651525 - Nuclear Properties & Reactions, A=39-58, Experimental- Nuclear Reactions & Scattering- (-1987) 651625 - Nuclear Properties & Reactions, A=59-89, Experimental- Nuclear Reactions & Scattering- (-1987) ALUMINIUM 27 TARGET ARGON 40 REACTIONS BETA DECAY RADIOISOTOPES BETA-PLUS DECAY RADIOISOTOPES CALCIUM 40 TARGET CHARGED-PARTICLE REACTIONS COMPOUND-NUCLEUS REACTIONS COPPER 59 COPPER 63 TARGET COPPER ISOTOPES DAYS LIVING RADIOISOTOPES DEFORMED NUCLEI ELECTRON CAPTURE RADIOISOTOPES ENERGY LEVELS ENERGY RANGE EVEN-EVEN NUCLEI EXCITED STATES FRAGMENTATION FUSION REACTIONS HEAVY ION REACTIONS INTERMEDIATE MASS NUCLEI ISOTOPES LIQUID DROP MODEL MATHEMATICAL MODELS MEV RANGE MEV RANGE 100-1000 MINUTES LIVING RADIOISOTOPES NEON 20 REACTIONS NUCLEAR MODELS NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR REACTIONS NUCLEI ODD-EVEN NUCLEI PARTIAL WAVES RADIOISOTOPES ROTATIONAL STATES SULFUR 32 REACTIONS TARGETS TITANIUM 48 TARGET YTTRIUM 83 YTTRIUM ISOTOPES ZINC 60 ZINC ISOTOPES ZIRCONIUM 88 ZIRCONIUM ISOTOPES
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Beschreibung
Zusammenfassung:	Differences in the kinetic energies of the fragments produced in the scission of the pairs of similar composite nuclei Cu-59/Zn-60 and Y-83/Zr-88 are interpreted as resulting from angular momentum fractionation. The energies indicate that some partial waves with angular momenta 10 to 15 h/(2 pi) below the sharp-cutoff fusion limit lead to strongly damped collisions.
ISSN:	0031-9007
DOI:	10.1103/PhysRevLett.45.696