Decay Spectroscopy at the Radioactive Isotope Beam Factory (RIBF) at RIKEN

Sesión

27 mar. 2025 10:00

1001-Primera-1-1-1 - Paterna. Seminario (Universe)

Moderadores

Proton Rich Nuclei I

• Yung Hee Kim (Center for Exotic Nuclear Studies)

Lista de contribución Cronograma

37. Exploring isospin symmetry breaking effects in the upper fp shell

Dr. Chaoyi FU (The University of Hong Kong)

27/3/25 10:00

Isospin symmetry, a fundamental symmetry in nuclear physics arising from the identical behaviors of protons and neutrons. The symmetry violation is usually explained as isospin non-conserving (INC) forces and continuum effect. In experiments, plenty of efforts are made in mass and decay spectroscopy.
Hence, to extend this study into the heavier nuclei for the upper $fp$ shell, we propose to...

4. Anomaly in the 2nd 2+ state of the self-conjugate 64Ge nucleus

Byul Moon (CENS, IBS)

27/3/25 10:15

$^{64}$Ge is a self-conjugate nucleus with N = Z = 32, located at just above the doubly magic nucleus, $^{56}$Ni. This nucleus has a notable feature observed in the $2^{+}_{2}$ state and its band structure [P. J. Ennis et al., NPA 535, 392 (1991)]. This band structure does not represent the $\gamma$-band structure with $K = 2$ although the authors particularly focused on triaxial deformation....

11. Waiting points and sandbanks along the rp-process path

Kathrin Wimmer

27/3/25 10:30

Nucleosynthesis in the rapid proton-capture process (rp-process) occurs in high-temperature, proton-rich environments, where nuclei rapidly capture protons and
undergo beta decay to form heavier elements. "Waiting points" emerge when proton captures become energetically unfavorable, temporarily halting nucleosynthesis until beta decay takes place.
These waiting points can be by-passed by...

26. Is the pseudo SU(4) symmetry valid to describe the beta decay of heavy systems beyond A=70?

Alejandro Algora (IFIC (CSIC-Univ. Valencia))

27/3/25 10:45

If pn pairing in the T=0 channel exists, one would expect a very collective $0^+ \rightarrow 1^+$ Gamow-Teller (GT) transition in the beta decay of a Z=N+2 nucleus into its N=Z counterpart [1], similar in strength to the super-allowed Fermi transition connecting the $0^+$ isobaric analog states. In a study performed at RIBF looking for these effects in the region around $A \sim 70$, we have...