Erlangen 2026 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 14: Structure and Dynamics of Nuclei IV
HK 14.5: Vortrag
Dienstag, 17. März 2026, 17:30–17:45, AM 00.021
Ab initio description of deformed nuclei from angular-momentum projection — •Mualla Aytekin1, Benjamin Bally1, Thomas Duguet2, and Alexander Tichai1,3,4 — 1Technische Universität Darmstadt, Department of Physics — 2IRFU, CEA, Université Paris-Saclay — 3ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH — 4Max-Planck-Institut für Kernphysik, Heidelberg
Atomic nuclei are complex quantum many-body systems that exhibit rich emergent collective behavior. To understand how such phenomena arise from the underlying nuclear forces, we investigate neon and magnesium isotopes using ab initio methods. We will present axially deformed mean-field calculations based on chiral two- and three-nucleon interactions and, via angular-momentum projection, explore the low-lying spectroscopy of the ground-state rotational bands. Finally, we will outline recent developments towards a projected coupled-cluster framework aimed at providing a unified description of both nuclear bulk properties and collective features. These developments open the door to a systematic and consistent treatment of deformed nuclei across the nuclear chart.
* Funded by the ERC Grant Agreement No. 101162059.
Keywords: Nuclear deformation; Angular-momentum projection; Ab initio nuclear theory