Mechanism of formation and decay of the compound nuclei150Gd produced by two entrance channels (16O+134Ba) and (40Ar+110Pd) View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1977-03

AUTHORS

S. Della Negra, H. Gauvin, H. Jungclas, Y. Le Beyec, M. Lefort

ABSTRACT

Excitation functions have been drawn for evaporation residues issued from150Gd, a compound nucleus produced either by16O ions on134Ba, or by40Ar on110Pd. Absolute cross sections were measured for145–147Gd,145–147Eu,141mSm,143mSm,140mPm and139mNd. Complete fusion cross sections have been obtained and compared to calculated estimations based, at low energies, on the simple expressionσCF=πRFuss2 (1−VFus/E) whereRFus andVFus are respectively the distance and the potential for fusion atdV/dr=0. For high energies σCF=πRcr2 (1−Vcr/E) with the model of critical distanceRcr and critical potentialVcr. Thresholds energies have been determined with a particular care. The analysis of the shape and the width of excitation functions, particularly for the emission of 4 and 5 neutrons, has been carried out and compared to calculated values. The difference between argon and oxygen induced reactions has been attributed to the difference inl population in the entrance channel. More... »

PAGES

65-73

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01881007

DOI

http://dx.doi.org/10.1007/bf01881007

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1029245775


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