Abstract
A detailed comparative study of the sub-barrier fusion of the two nearby systems 36S+50Ti,51V was performed at the National Laboratories of Legnaro (INFN). The experiment aimed to evidence possible effects of the non-zero spin of the ground state of the 51V nucleus on the sub-barrier excitation function and on the shape of the barrier distribution. The comparison of both excitation functions and barrier distributions showed a very similar behavior, down to the level of 20–30 µb. Coupled-channels calculations have been performed including the low-energy excitations of both projectile and the two targets, and the results are in very good agreement with the data. This indicates that the low-lying levels in 51V can be interpreted in the weak-coupling scheme and that the extra proton in the f7/2 shell does not have a significant influence on sub-barrier fusion.
Highlights
The title Probing fundamental laws of nature with exotic nuclei and atoms was adopted for the 2019 Conference. It highlighted the fundamental aspects of nuclear and atomic physics, and their sensitivity to the signals allowing us to search for new physics in ways that are complementary to other approaches
The physics of super-heavy atoms was analyzed by Peter Schwerdtfeger and Anastasia Borschevsky, while Krzysztof Pachucki discussed nuclear charge radii derived from the isotope-shift measurements in ordinary and muonic atoms
We continued on the third day on the topic of nuclear astrophysics with presentations on neutron sources for the i-process (Michael Wiescher), experimentally constrained (n,γ) reaction rates (Magne Guttormsen), precise mass measurements (Anu Kankainen), and the d + 7Be cross sections for Big-Bang nucleosynthesis (Ingo Wiedenhöver)
Summary
The title Probing fundamental laws of nature with exotic nuclei and atoms was adopted for the 2019 Conference. The Conference began, following the tradition, on Sunday evening with a general lecture — this year on applications of nuclear physics to history and ancient art.
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