Speaker
Description
Loosely bound nuclei are currently at the centre of interest in low-energy nuclear physics. The deeper understanding of their properties provided by the shell model for open quantum systems changes the comprehension of many phenomena and offers new horizons for spectroscopic studies of nuclei
from the driplines to the valley of
In this talk, I will review recent progress in the open quantum system shell model description of nuclear states. In particular, I will present selected applications of the shell model embedded in the continuum, the real-energy continuum shell model, and the complex-energy continuum shell model, the so-called Gamow shell model in the coupled-channel basis. Salient generic features will be illustrated on examples of (i) near-threshold collectivity and clustering, (ii) chameleon resonances, (iii) modification of effective NN interactions and shell occupancies in weakly bound/unbound states, (iv) exceptional point singularities in the continuum, (v) change of the electromagnetic transitions by the coupling to decay channels, and (v) low-energy reactions of astrophysical interest.
[1] N. Michel, M. P{\l}oszajczak, \textit{Gamow Shell Model - The
Unified Theory of Nuclear Structure and Reactions}, Lecture Notes in Physics \textbf{983} (Springer, Cham, 2021).
[2] N. Michel, W. Nazarewicz, M. P{\l}oszajczak and T. Vertse, J. Phys. G: Nucl. Part. Phys., {\bf 36} (2008) 013101.
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| Are you a student or postdoc? | no |
