Recent data on fusion far below the barrier for <sup>12</sup>C + <sup>28</sup>Si
Heavy-ion fusion reactions are essential to investigate the fundamental problem of quantum tunnelling of many-body systems in the presence of intrinsic degrees of freedom. Studying the fusion of light systems with Q > 0 and possibly identifying the hindrance phenomenon, requires challenging measurements. Investigating slightly heavier cases allows a reliable extrapolation towards the lighter astrophysical systems. We measured the fusion excitation function of 12 C + 28 Si down to hundreds of nanobarns, using 28 Si beams from the XTU Tandem accelerator of LNL. The charged particles evaporated after the fusion process were detected by two DSSDs around the target. The prompt γ -rays emitted by the evaporation residues (ER) were detected by the γ -spectrometer AGATA. The fusion cross-sections are obtained from the coincident events between γ -rays and charged particles. The light-charged particles have been identified through pulse shape analysis, using the rise time, vs their energy E part . The main transitions from the ER have been identified, and the fusion cross section is obtained by the number of coincident γ -particle events for all observed evaporation channels. Neutron evaporation is calculated to be limited to a few per cent for this system in the measured energy range. Preliminary analyses provide promising results in studying fusion cross sections for light systems at deep sub-barrier energies.
Authors
- A. Ertoprak
- J. Valiente Dobon
- L. Corradi
- M. Del Fabbro (ORCID: https://orcid.org/0009-0002-6405-3569)
- S. Pigliapoco (ORCID: https://orcid.org/0000-0002-5956-640X)
- L. Zago (ORCID: https://orcid.org/0000-0003-3852-2536)
- A. Bonhomme
- A. Goasduff (ORCID: https://orcid.org/0000-0003-3453-3297)
- M. Polettini
- K. Rezynkina
- F. Galtarossa (ORCID: https://orcid.org/0000-0001-6897-255X)
- G. Colucci (ORCID: https://orcid.org/0000-0003-3007-2059)
- E. Monpribat
- D. Mengoni
- I. Zanon
- J. Pellumaj
- D. Stramaccioni
- M. Mazzocco (ORCID: https://orcid.org/0000-0002-0341-0043)
- S. Szilner (ORCID: https://orcid.org/0000-0001-8658-1333)
- Franco Angelini (ORCID: https://orcid.org/0000-0003-2559-9569)
- B. Góngora Servín
- J. Benito
- A. Gozzelino
- E. Pilotto
- M. Heine (ORCID: https://orcid.org/0000-0001-6219-3635)
- M. Balogh
- A. Gottardo
- E. Fioretto
- S. Courtin (ORCID: https://orcid.org/0000-0001-6972-2798)
- M. Rocchini (ORCID: https://orcid.org/0000-0001-6869-0181)
- D. Brugnara
- A. Trzcińska (ORCID: https://orcid.org/0000-0003-0300-6136)
- G. Andreetta (ORCID: https://orcid.org/0000-0001-9697-7630)
- G. Montagnoli (ORCID: https://orcid.org/0000-0002-8944-1456)
- R. Depalo (ORCID: https://orcid.org/0000-0003-3943-7982)
- R.M. Perez Vidal
- B. Million
- A. M. Stefanini
- R. Nicolás del Álamo
Institutions
- Universidad Complutense de Madrid (ES)
- University of Padua (IT)
- Stockholm University (SE)
- University of Milan (IT)
- University of Ferrara (IT)
- Institut Pluridisciplinaire Hubert Curien (FR)
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT)
- Ruđer Bošković Institute (HR)
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Firenze (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT)
- University of Warsaw (PL)
Publication Details
- Journal
- EPJ Web of Conferences
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1051/epjconf/202532400008
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- European Commission
- Hrvatska Zaklada za Znanost