Sponsor
Physics
Precision nuclear structure with the in-medium similarity renormalization group
Thursday, March 9,
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Speaker(s): Matthias Heinz (TU Darmstadt)
Matthias Heinz (TU Darmstadt)
Ab initio nuclear structure theory aims to predict the structure of atomic nuclei from "first principles," employing systematically improvable approximations in the determination of inter-nucleon potentials and in the solution of the many-body Schrödinger equation. Over the past decade, the in-medium similarity renormalization group (IMSRG) has been established as a powerful and flexible method to approaching the many-body problem. I will discuss the developments that have allowed the IMSRG to emerge as a consistent framework for predicting the structure of medium-mass nuclei (closed- and open-shell) and have extended the reach of the method to heavy systems. Recently, we have worked on extending the IMSRG to the next order, the IMSRG(3) with normal-ordered three-body interactions. I will discuss the improved description of the structure neutron-rich calcium isotopes made possible by the IMSRG(3) and what this means for existing discrepancies to experimental trends.
Ab initio nuclear structure theory aims to predict the structure of atomic nuclei from "first principles," employing systematically improvable approximations in the determination of inter-nucleon potentials and in the solution of the many-body Schrödinger equation. Over the past decade, the in-medium similarity renormalization group (IMSRG) has been established as a powerful and flexible method to approaching the many-body problem. I will discuss the developments that have allowed the IMSRG to emerge as a consistent framework for predicting the structure of medium-mass nuclei (closed- and open-shell) and have extended the reach of the method to heavy systems. Recently, we have worked on extending the IMSRG to the next order, the IMSRG(3) with normal-ordered three-body interactions. I will discuss the improved description of the structure neutron-rich calcium isotopes made possible by the IMSRG(3) and what this means for existing discrepancies to experimental trends.