Isospin influence on the decay modes of the systems produced in the 78,86Kr +40,48Ca reactions at 10 AMeV

B. Gnoffo; S. Pirrone; G. Politi; M. La Commara; J.P. Wieleczko; E. De Filippo; P. Russotto; M. Trimarchi; M. Vigilante; G. Ademard; F. Amorini; L. Auditore; C. Beck; I. Bercenau; E. Bonnet; B. Borderie; G. Cardella; A. Chibihi; M. Colonna; A. D’Onofrio; J.D. Frankland; E. Geraci; E. Henry; E. La Guidara; G. Lanzalone; P. Lautesse; D. Lebhertz; N. LeNeidre; I. Lombardo; K. Mazurek; S. Norella; A. Pagano; E.V. Pagano; M. Papa; E. Piasecki; F. Porto; L. Quattrocchi; M. Quinlann; F. Rizzo; U. Shoroeder; G. Spadaccini; A. Trifirò; J. Toke; G. Verde

doi:10.1051/epjconf/201611708012

All issues

Volume 117 (2016)

EPJ Web of Conferences, 117 (2016) 08012

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 117, 2016 12^th International Conference on Nucleus-Nucleus Collisions 2015


Article Number		08012
Number of page(s)		6
Section		VIII. Fusion and Fission
DOI		https://doi.org/10.1051/epjconf/201611708012
Published online		11 May 2016

EPJ Web of Conferences 117, 08012 (2016)
https://doi.org/10.1051/epjconf/201611708012

Isospin influence on the decay modes of the systems produced in the ^78,86Kr +^40,48Ca reactions at 10 AMeV

B. Gnoffo¹, S. Pirrone¹, G. Politi¹^,2, M. La Commara³^,4, J.P. Wieleczko⁵, E. De Filippo¹, P. Russotto¹, M. Trimarchi⁷^,8, M. Vigilante³^,4, G. Ademard¹¹, F. Amorini⁶, L. Auditore⁷^,8, C. Beck⁹, I. Bercenau¹⁰, E. Bonnet⁵, B. Borderie¹¹, G. Cardella¹, A. Chibihi⁵, M. Colonna⁶, A. D’Onofrio⁴^,12, J.D. Frankland⁵, E. Geraci¹^,2, E. Henry¹³, E. La Guidara¹^,14, G. Lanzalone¹⁵^,6, P. Lautesse¹⁶, D. Lebhertz⁵, N. LeNeidre¹⁷, I. Lombardo³, K. Mazurek⁵, S. Norella⁷^,8, A. Pagano¹, E.V. Pagano²^,6, M. Papa¹, E. Piasecki⁵^,10, F. Porto⁹^,1, L. Quattrocchi⁷^,8, M. Quinlann¹³, F. Rizzo¹^,6, U. Shoroeder¹³, G. Spadaccini³^,4, A. Trifirò⁷^,8, J. Toke¹³ and G. Verde¹

¹ INFN, Sezione di Catania, Catania, Italy
² Dipartimento di Fisica e Astronomia, Univ. di Catania, Italy
³ Dip. di Fisica, Univ. Federico II Napoli, Italy
⁴ INFN, Sezione di Napoli, Napoli, Italy
⁵ Ganil, CAEN, France
⁶ INFN - Laboratori Nazionali del Sud, Catania Italy
⁷ Dip. di Fisica, Univ. Messina, Italy
⁸ INFN, Gruppo coll. di Messina, Messina, Italy
⁹ IN2P3-IPHC, Strasbourg, France
¹⁰ IPNE, Bucarest, Romania
¹¹ IN2P3-IPN, Orsay, France
¹² Dip. di Matematica e Fisica, Seconda Univ. di Napoli, Caserta, Italy
¹³ University of Rochester, Rochester, NY, USA
¹⁴ Centro Siciliano Fisica Nucleare e Struttura della Materia, Catania, Italy
¹⁵ Università “Kore”, Enna, Italy
¹⁶ IN2P3-IPN Lyon, France
¹⁷ IN2P3-LPC CAEN, France
¹⁸ Faculty of Physics and Heavy Ion Laboratory, Univ. of Warsaw, Poland
¹⁹ INFN - Laboratori Nazionali di Legnaro, Legnaro ( PD ) Italy

Published online: 11 May 2016

Abstract

The results of the analysis of the reactions ^78,86Kr +^40,48 Ca at 10 AMeV are presented. The experiment was performed at the INFN Laboratori Nazionali del Sud (LNS) in Catania by using the 4π multidetector CHIMERA, with beams delivered by the Superconductive Cyclotron. The competition among the various disintegration paths and in particular the isospin effects on the decay modes of the produced composite systems are investigated; this provides information about fundamental nuclear quantities such as level density, fission barrier and viscosity. Different isotopic composition and relative richness are observed among the reaction products of the two systems. An odd-even staggering effect is present in the charge distributions, in particular for the light fragments produced by the neutron-poor system. The kinematical characteristics of the IMF seem to indicate a high degree of the relaxation of the formed system. Besides, global features analysis seems to show some differences in the contribution arising from the various reaction mechanisms for the two reactions.

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