Speaker
Description
It has been shown for several years that cluster states in nuclei could be understood through universal microscopic approaches [1, 2]. Furthermore, starting from a nuclear matter model including clusters, and with a finite nucleus-matter correspondence, it is possible to predict and observe alpha clusters at the surface of Tin isotopes[3]. Here, we present a unified theoretical framework for the study of alpha Clustering in atomic nuclei, following the continuity of both previous works. This framework aims to describe, in a consistent manner, the coexistence between nucleonic and alpha clusters degrees of freedom[4]. The nucleus is modeled as a composite system made of nucleons and alpha clusters.
The dynamics is formulated within a microscopic Many-Body approach, combining an EDF framework for the mediating fields, the nucleons, and the alpha clusters[4]. The resulting set of coupled equations provides a tool to investigate the emergence and stability of clusterized configurations in finite nuclei, as well as their impact on nuclear binding energy, deformations or charge radius.
[1] J.-P. Ebran, E. Khan, T. Nikšić, and D. Vretenar, Nature 487, 341 (2012)
[2] P. Marević, J.-P. Ebran, E. Khan, T. Nikšić, and D. Vretenar, Phys. Rev. C 99, 034317 (2019)
[3] J. Tanaka et al., Science 371, 260 (2021)
[4] S. Typel, G. Röpke, T. Klähn, D. Blaschke, and H. H. Wolter, Phys. Rev. C 81, 015803 (2010)