De-excitation modes of compound systems 118Ba and 134Ba, produced respectively in the 78Kr+40Ca and 86Kr+48Ca collisions at 10 A.MeV, are investigated. In particular, the competition between the various disintegration decay paths of medium mass compound nuclei, formed by fusion processes and the isospin (related to N/Z) of the entrance channel influence on the decay process, are studied. Data were taken at the INFN-Laboratori Nazionali del Sud (LNS) in ISODEC experiment, by using the CHIMERA array. The experiment complements and improves the previous experiment performed at GANIL where the same mechanisms were studied at lower excitation energies. The results show the presence of a relaxed component in the reaction mechanism, evident staggering effects in the Z distributions, as well as different isotopic composition and neutron enrichment for the reaction products in the two systems.
Decay competition in IMF production in the collisions 78Kr+40Ca and 86Kr+48Ca at 10 A.MeV / S., Pirrone; G., Politi; LA COMMARA, Marco; J. P., Wieleczko; E., De Filippo; B., Gnoffo; G., Ademard; Vigilante, Mariano; F., Amorini; L., Auditore; C., Beck; I., Berceanu; E., Bonnet; B., Borderie; G., Cardella; A., Chbihi; M., Colonna; A., D’Onofrio; J. D., Frankland; E., Geraci; E., Henry; E., La Guidara; G., Lanzalone; P., Lautesse; D., Lebhertz; N., Le Neindre; Lombardo, Ivano; K., Mazurek; A., Pagano; M., Papa; E., Piasecki; M., Quinlann; F., Rizzo; Rosato, Elio; P., Russotto; W. U., Schroeder; Spadaccini, Giulio; A., Trifirò; J., Tõke; M., Trimarchi; G., Verde. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 515:(2014). (Intervento presentato al convegno International Symposium on Entrance Channel Effect on the Reaction Mechanism in Heavy Ion Collisions tenutosi a Messina (Italy) nel 6–8 November 2013) [10.1088/1742-6596/515/1/012018].
Decay competition in IMF production in the collisions 78Kr+40Ca and 86Kr+48Ca at 10 A.MeV
LA COMMARA, MARCO;VIGILANTE, MARIANO;LOMBARDO, IVANO;ROSATO, ELIO;SPADACCINI, GIULIO;
2014
Abstract
De-excitation modes of compound systems 118Ba and 134Ba, produced respectively in the 78Kr+40Ca and 86Kr+48Ca collisions at 10 A.MeV, are investigated. In particular, the competition between the various disintegration decay paths of medium mass compound nuclei, formed by fusion processes and the isospin (related to N/Z) of the entrance channel influence on the decay process, are studied. Data were taken at the INFN-Laboratori Nazionali del Sud (LNS) in ISODEC experiment, by using the CHIMERA array. The experiment complements and improves the previous experiment performed at GANIL where the same mechanisms were studied at lower excitation energies. The results show the presence of a relaxed component in the reaction mechanism, evident staggering effects in the Z distributions, as well as different isotopic composition and neutron enrichment for the reaction products in the two systems.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
