The 1st IReNA-Ukakuren Joint Workshop “Advancing Professional Development in Nuclear Astrophysics and Beyond”

Session

Heavy Nuclei

28 Aug 2023, 14:00

Large Seminar Room (Subaru Building) (NAOJ (National Astronomical Observatory of Japan))

Conveners

Heavy Nuclei: Afternoon - 1

• Tomoya Naito (RIKEN iTHEMS)

Heavy Nuclei: Afternoon - 2

• Yuta Ito (JAEA)

Heavy Nuclei: Morning - 2

• Rahul Jain

59. Exploring the neutron-rich actinide region via ion-trap techniques for nuclear astrophysics applications

Yuta Ito (JAEA)

28/08/2023, 14:00

Invited talk

The neutron-rich actinide region is of interest as it is thought to be
related to the endpoint of the nucleosynthesis via the rapid
neutron-capture process (r-process), where the actinide elements such as
uranium are formed by beta-decays and middle-mass nuclei are served by
nuclear fissions. To explore this region and measure fundamental nuclei
properties related to the nucleosynthesis...

27. Exploring Shell Structure at N=32, 34: Mass Measurements of Sc, Ti, and V Isotopes

Shun Iimura (Rikkyo University)

28/08/2023, 14:40

Talk

In this contribution, we report on mass measurements of ${}^{55}$Sc, ${}^{55-58}$Ti, and ${}^{55-59}$V isotopes obtained during the first commissioning campaign of the ZD-MRTOF system at the RIBF/RIKEN. We discuss the implications of these masses in the shell structure at $N=32,34$ in the context of deformation toward $N=40$. The newly installed experimental system, located downstream of the...

42. Quantified Nuclear Mass Model for r-process simulations using Bayesian Machine Learning Techniques

Rahul Jain

28/08/2023, 15:40

Invited talk

24. Bayesian approach to fission products yields of 235U by data augmentation

Dr Jingde Chen (Tokyo Institute of Technology)

28/08/2023, 16:20

Talk

Fission yield is an important physical quantity for nuclear systems and the origin of heavy elements. In recent years, the energy dependence of fission yield has attracted particular attention. In this presentation, we present our first results for fission products yields (FPY) predicted by Bayesian neural network (BNN) model.

In the BNN model, we divided the FPY data in the JENDL-5.0...

56. Impact of the isospin symmetry breaking on the nuclear equation of state

Tomoya Naito (RIKEN iTHEMS)

29/08/2023, 11:00

Invited talk

TBA

17. Prompt decay calculation using primary fission yield and TKE obtained from 4-D Langevin model

Kazuki Fujio (Tokyo Institute of Technology)

29/08/2023, 11:40

Talk

For the fission reaction, the Langevin model simulates the fission process from nuclear deformation after forming a compound nucleus up to scission. We have developed 4-dimensional Langevin model and succeeded in describing the fission fragment yield and total kinetic energy (TKE) as a function of fragment mass number over a wide mass range from actinide to superheavy nuclei. We performed...