https://doi.org/10.1140/epja/s10050-023-01049-w
Review
Recent experimental results in sub- and near-barrier heavy ion fusion reactions (2nd edition)
1
Dipartimento di Fisica e Astronomia, Università di Padova, and INFN Sezione di Padova, via Marzolo 8, 35020, Padova, Italy
2
INFN, Laboratori Nazionali di Legnaro, viale dell’Universitá 2, 35020, Legnaro, Italy
a
giovanna.montagnoli@unipd.it
Received:
1
March
2023
Accepted:
22
May
2023
Published online:
23
June
2023
This article is a new edition of the review published six years ago by the same auhors [Eur. Phys. J. A 54, (2017) 218]. It includes additionally the most recent and significant results obtained in the field of heavy-ion fusion near and below the Coulomb barrier, which have been important for the advance of our knowledge. In particular, we present a selection of recent findings concerning the fusion dynamics of light systems, which is relevant for astrophysics, and moreover recent information obtained from measurements involving heavy-ion exotic beams. With respect to the previous paper, the description of relevant set-ups and methods is done in a dedicated Section. Recent advances obtained in the field of near and sub-barrier heavy-ion fusion reactions are reported. Early data on sub-barrier fusion taught us that cross sections strongly depend on the low-energy collective modes of the colliding nuclei, and on couplings to transfer channels. The coupled-channels model has been successful in the interpretation of the experiments, and fusion barrier distributions may yield the fingerprint of the relevant coupled channels. Far below the barrier, the slope of the excitation function keeps increasing in many cases and standard calculations over-predict the cross sections. This was named a hindrance phenomenon whose physical origin is a matter of debate. Recent theoretical developments suggest that hindrance may be a consequence of the Pauli exclusion principle. Hindrance has far-reaching consequences in astrophysics where the fusion of light systems determines stellar evolution during the carbon and oxygen burning stages.
The original article https://doi.org/10.1140/epja/s10050-023-01049-w needs to be linked as RevisionTo to article https://doi.org/10.1140/epja/i2017-12350-2.
Change summary Major revision, updated and expanded.
Change details This is a new edition of the review published by the same authors as Eur. Phys. J. A 54, (2017) 218. It includes the most recent and significant results obtained in the field of heavy-ion fusion near and below the Coulomb barrier, which have been important for the advance of our knowledge. In particular, we present a selection of recent findings concerning the fusion dynamics of light systems, which is relevant for astrophysics, and moreover recent information obtained from measurements involving heavy-ion exotic beams. With respect to the previous edition, the description of relevant set-ups and methods is provided now in a dedicated section.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
