N/Z effect on reaction mechanisms cross sections in the 78 Kr +40 Ca and 86 Kr +48 Ca collisions at 10 AMeV

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Gnoffo, B.^1,2 ; Pirrone, S.^1 ; Politi, G.^1,3 ; La Commara, M.^4,5 ; Wieleczko, J.P.^6 ; De Filippo, E.^1 ; Russotto, P.^1 ; Trimarchi, M.^8 ; Vigilante, M.^4,5 ; Ademard, G.^11 ; Auditore, L.^8 ; Beck, C.^9 ; Bercenau, I.^10 ; Bonnet, E.^6 ; Borderie, B.^11 ; Cardella, G.^1 ; Chibihi, A.^6 ; Colonna, M.^7 ; Dell'Aquila, D.^4,5 ; De Luca, S.^8 ; D'Onofrio, A.^5,12 ; Frankland, J.D.^6 ; Lanzalone, G.^7,13 ; Lautesse, P.^14 ; Lebhertz, D.^6 ; Le Neidre, N.^15 ; Lombardo, I.^4,5 ; Martorana, N.S.^3,7 ; Mazurek, K.^6 ; Norella, S.^8 ; Pagano, A.^1 ; Pagano, E.V.^3,7 ; Papa, M.^1 ; Piasecki, E.^16 ; Porto, F.^1,3 ; Quattrocchi, L.^1,3 ; Rizzo, F.^3,7 ; Spadaccini, G.^4,5 ; Trifirò, A.^8 ; Verde, G.^11

INFN Sezione di Catania, Italy^1

Centro Siciliano Fisica Nucleare e Struttura della Materia, Catania, Italy^2

Dipartimento di Fisica e Astronomia, Università di Catania, Italy^3

Dipartimento di Fisica, Università Federico II Napoli, Italy^4

INFN Sezione di Napoli, Napoli, Italy^5

Ganil, CAEN, France^6

INFN, Laboratori Nazionali Del Sud, Catania, Italy^7

Dipartimento di Fisica, Università di Messina, INFN Sezione di Catania, Italy^8

IN2P3-IPHC Strasbourg, France

(10) IPNE, Bucarest, Romania

(11) IN2P3-IPN, Orsay, France

(12) Dipartimento di Matematica e Fisica, Seconda Università di Napoli, Caserta, Italy

(13) Kore Universitá, Enna, Italy

(14) IN2P3-IPN, Lyon, France

(15) IN2P3-LPC CAEN, France

(16) Faculty of Physics, Heavy Ion Laboratory, University of Warsaw, Poland^9

关键词: De-excitations;    Evaporation process;    Long-lived systems;    Low-energy;    Multi-detectors;    Reaction mechanism;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012062/pdf
DOI  :  10.1088/1742-6596/863/1/012062

来源: IOP

【 摘 要 】

Nuclear reactions between medium-mass nuclei at low energy are characterized by the competition between binary and evaporation process in the compound nucleus de-excitation. A study of the influence of the neutron richness of the entrance channel on the decay paths of the compound nuclei formed in the78Kr +40Ca and86Kr +48Ca at 10 MeV/A is presented. The experiment has been performed at Laboratori Nazionali del Sud by using the CHIMERA 4π multidetector for charged particles. The Kinematical characteristics of the two reactions support the conclusion of a production via long lived system. Besides the results relative to the n-poor system are compared to those obtained at GANIL, performed at 5.5 AMeV, in order to study the energy influence.