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AbstractAbstract
[en] The aim of this work is to show the main characteristics of the reactions Kr+12C and Kr+27Al studied at the incident energy of 35 MeV/A. Due to the heavy nature of the projectile all emitted fragments and particles are focused at forward angles and these nuclei are detected by a time of flight technique. We identify in each reaction the same average mass M = 75 which decays through an asymmetric binary fission process. On another hand the missing nucleons are evaporated by the compound system. This analysis is strengthened by the study of a 3-body mechanism in the final state and correlations which involve a deeply excited compound system. Light emitted particles are mainly protons and alphas with a mean value of the multiplicity close to 3
[fr]
L'objet de ce travail est de degager les principales caracteristiques des reactions etudiees 84Kr + 12C et 84Kr + 27Al a une energie incidente de 35 Mev/A. L'analyse effectuee est basee sur la cinematique inverse qui permet de regrouper les produits emis dans un faible domaine angulaire. Nous mettons en evidence la formation d'une masse moyenne de dissociation M = 75 pour les deux reactions a partir de l'etude des coincidences. Nous montrons que la decomposition du systeme composite forme consiste en une fission binaire dissymetrique de fragments. D'autre part, l'emission des nucleons manquants s'effectue par un processus d'evaporation a partir du systeme composite. Cette analyse est renforcee par l'etude d'un mecanisme a 3 corps dans l'etat final et l'etude des correlations qui impliquent un systeme composite fortement excite. Les particules legeres emises sont principalement des protons et des α dont la multiplicite est voisine de 3Original Title
Analyse des collisions 84Kr+12C et 84Kr+27Al en cinematique inverse a 35MeV/A
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Secondary Subject
Source
1985; 128 p; These (D. es Sc.).
Record Type
Report
Literature Type
Thesis/Dissertation
Report Number
Country of publication
BARYONS, CATIONS, CHARGED PARTICLES, COUNTING TECHNIQUES, ELEMENTARY PARTICLES, ENERGY, ENERGY RANGE, FERMIONS, FISSION, FUNCTIONS, GEV RANGE, HADRONS, HEAVY ION REACTIONS, HELIUM IONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, IONIZING RADIATIONS, IONS, KINETICS, MANY-BODY PROBLEM, NUCLEAR FRAGMENTS, NUCLEAR REACTIONS, NUCLEONS, RADIATIONS, REACTION KINETICS, TARGETS
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