Study of Nuclear Structure of 13C and 20Ne by Low Energy Nuclear Reactions

3rd International Workshop on "State of the Art in Nuclear Cluster Physics"

Lombardo, I.^1,2 ; Campajola, L.^1,2 ; Dell'Aquila, D.^3,4 ; Commara, M. La^1,2 ; Ordine, A.^2 ; Rosato, E.^1,2 ; Spadaccini, G.^1,2 ; Vigilante, M.^1,2

Dipartimento di Fisica, Università di Napoli Federico II, Via Cinthia, Napoli

80126, Italy^1

Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, Via Cinthia, Napoli

80126, Italy^2

Dipartimento di Fisica Ed Astronomia, Università di Catania, Via S. Sofia, Catania

95125, Italy^3

Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali Del Sud, Via S. Sofia, Catania

95125, Italy^4

关键词: Barrier energy;    Direct kinematics;    Emission threshold;    Excitation function;    High resolution;    Low energy nuclear reactions;    Nuclear structure;    Resonant scattering;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/569/1/012068/pdf
DOI  :  10.1088/1742-6596/569/1/012068

来源: IOP

【 摘 要 】

We report some recent experimental results on the spectroscopy of13C and20Ne nuclei by means of low energy nuclear reactions carried out with high resolution electrostatic accelerators. In the case of13C we investigated the possible existence of a-cluster states above the a emission threshold by means of low energy elastic resonant scattering α+9Be in direct kinematics. Excitation functions show the presence of various resonances that have been reproduced by R-matrix fit. We studied also the structure of20Ne by means of the19F(p,α0) reaction at sub-barrier energies. The spectroscopy of20Ne excited states in the region Ex 13.5-14.0 MeV can be probed by analyzing experimental angular distributions and excitation functions. This reaction plays an important role also in the CNOF cycle and is an important ingredient to describe hydrogen-induced destruction of fluorine in massive stars. For this reason we investigated the trend of S-factor, that has been compared with results previously reported in the literature.