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HK: Fachverband Physik der Hadronen und Kerne
HK 65: Structure and Dynamics of Nuclei XII
HK 65.1: Gruppenbericht
Donnerstag, 14. März 2024, 15:45–16:15, HBR 19: C 5a
Precision ab initio nuclear structure and implications for fundamental physics — •Matthias Heinz1,2,3, Kai Hebeler1,2,3, Jan Hoppe1,2, Takayuki Miyagi1,2,3, Achim Schwenk1,2,3, S. Ragnar Stroberg4, and Alexander Tichai1,2,3 — 1Technische Universität Darmstadt, Department of Physics — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH — 3Max-Planck-Institut für Kernphysik, Heidelberg — 4Department of Physics and Astronomy, University of Notre Dame
Ab initio nuclear structure theory aims to predict the structure of atomic nuclei from “first principles,” employing systematically improvable approximations in the determination of nuclear forces and in the solution of the many-body Schrödinger equation. Over the past two decades, this ab initio paradigm has been successfully established as a consistent, precise framework for predicting the structure of medium-mass nuclei (closed- and open-shell) and can now also reach heavy systems. Recent developments have extended ab initio calculations on two frontiers: towards higher precision and towards heavier nuclei. I discuss improvements in the treatment of three-body forces to allow converged calculations of 208Pb and high-precision calculations improving the description of calcium isotopes. The precise many-body treatment will be important to understand nuclear structure effects in new physics searches in nuclei.
* Funded by ERC Grant Agreement No. 101020842
Keywords: Ab initio nuclear structure; Fundamental symmetries; Three-nucleon forces