Clustering effects in ⁴⁸Cr composite nuclei produced via ²⁴Mg + ²⁴Mg reaction

¹ Istituto Nazionale di Fisica Nucleare, Via Cinthia, 80126 Napoli, Italy
² Istituto Nazionale di Fisica Nucleare and Dipartimento di Scienze Fisiche, Universitá di Napoli “Federico II”, Via Cinthia, 80126 Napoli, Italy
³ Laboratori Nazionali di Legnaro dell'Istituto Nazionale di Fisica Nucleare, Legnaro (Padova), Italy
⁴ Istituto Nazionale di Fisica Nucleare, Firenze, Italy

^a e-mail: dinitto@na.infn.it

Abstract

In the framework of studying clustering effects in N=Z light nuclei, an experiment was carried out to get information on the properties of the ⁴⁸Cr composite nuclei produced via the ²⁴Mg +²⁴Mg reaction. In particular, the study regards the ⁴⁸Cr at ⁶⁰ MeV of excitation energy where a resonance with a narrow width (170 KeV) has been found by measuring the elastic and anelastic channels. To determine the deformation of this state, evaporative Light Charged Particles (LCP) are measured and compared to the Statistical Model (SM) predictions, which are very sensitive to nuclear deformation. The experiment was performed at LNL using the 8ĒLP apparatus to select LCPs and a Parallel Plate Avalanche Counter (PPAC) system to detect the Evaporation Residues (ER). Preliminary results on the measurements of ER – LCP and LCP – LCP angular correlations are presented which indicate the presence of a very large deformation.The analysis will proceed with the extraction of the LCP energy spectra and with the angular correlations for high multiplicity channels to determine the deformation.