Speaker
Dr
Naofumi Tsunoda
(University of Tokyo)
Description
We present the first application of the newly developed theory, EKK, of
effective nucleon-nucleon interactions to the structure of exotic nuclei.
This theory, a novel revision of many-body perturbation theory,
enables us to perform shell-model calculations with several major shells (for instance, sd+pf shells).
Using the Entem-Machleidt QCD-based chiral EFT interaction and the Fujita-Miyazawa three-body force,
exotic neutron-rich Ne, Mg and Si isotopes are studied systematically, with a good description of
ground-state energies, first 2+ and 4+ levels, and E2 transitions,
as the first shell-model calculation for the island of inversion
without two-body matrix elements fitted to experiment.
The drip lines are predicted.
We show effective single-particle energies from this interaction, exhibiting the shell evolution
produced by the chiral EFT interaction + three-body force.
Obviously, proposed configuration patterns can be exciting objects of direct reaction studies.
Primary author
Prof.
Takaharu Otsuka
(Department of Physics, University of Tokyo)
Co-authors
Prof.
Morten Hjorth-Jensen
(MSU)
Dr
Naofumi Tsunoda
(University of Tokyo)
Dr
Noritaka Shimizu
(University of Tokyo)
Prof.
Suzuki Toshio
(Nihon Univeristy)
Prof.
Takayanagi Kazuo
(Sophia University)
