Clustering in light nuclei and their effects on fusion and pre - Equilibrium processes.

Fabiana Gramegna, Magda Cicerchia, Daniela Fabris, Tommaso Marchi, Marco Cinausero, Meltem Degerlier, Justin Mabiala, Giorgia Mantovani, Luca Morelli, Michela D'Agostino, Mauro Bruno, Sandro Barlini, Maurizio Bini, Gabriele Pasquali, Silvia Piantelli, Giovanni Casini, Giuseppe Pastore, Diego Gruyer, Pietro Ottanelli, Simone ValdréNicla Gelli, Alessandro Olmi, Giacomo Poggi, Emanuele Vardaci, Ivano Lombardo, Daniele Dell'Aquila, Silvia Leoni, Natalya Cieplicka-Orynczak, Bogdan Fornal, Daniele Mengoni, Gianmaria Collazuol, Antonio Caciolli, Maria Colonna, Akira Ono, Giorgio Baiocco

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

The study of nuclear cluster states bound by valence neutrons is a field of recent large interest. In particular, it is important to study the pre-formation of α-clusters in α-conjugate nuclei and the dynamical condensation of clusters during nuclear reactions [1-5]. The NUCL-EX collaboration has recently initiated an experimental campaign of exclusive measurements of fusion-evaporation reactions with light nuclei as interacting partners. In collisions involving light systems, the low expected multiplicity of fragments increases the probability of achieving a quasi-complete reconstruction of the event. In particular the formation and decay modes of an excited 24Mg system have been studied through two different reactions, 12C (95 MeV)+ 12C and 14N (80.7 MeV)+ 10B, which have been used to produce fused systems with nearly the same mass and excitation energy (∼60 MeV). In particular, even the de-excitation of the Hoyle state in 12C have been studied, both in peripheral (projectiles de-excitation) and in central collisions (six α-particles channel). Moreover, a research campaign studying pre-equilibrium emission of light charged particles and cluster properties of light and medium-mass nuclei has been carried out. For this purpose, a comparative study of the three nuclear systems 18O+28Si, 16O+30Si and 19F+27Al has been recently studied using the GARFIELD+RCo 4π setup [6]. The experimental data are compared with the predictions of simulated events generated with the statistical models (GEMINI++ and HFl) and through dynamical models like Stochastic Mean Field (SMF) and Antisymmetrized Molecular Dynamics (AMD) and filtered with a software replica of our apparatus in order to take into account the experimental conditions.

Original languageEnglish
Article number00020
JournalEPJ Web of Conferences
Volume163
DOIs
Publication statusPublished - 2017 Nov 22
EventFUSION 2017 - Hobart, Australia
Duration: 2017 Feb 202017 Feb 24

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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