RIKEN Nishina Center for Accelerator-Based Science Nuclear Dynamics Research Group

Group Director: Tomohiro Uesaka (D.Sc.)

Japanese Page

Research Summary

The Nuclear Dynamics Research Group pursues research activities putting primary focus on interplay of spin and isospin in exotic nuclei. Understanding nucleosyntheses in the universe, especially those in r- and rp-processes is another big goal of our laboratory. The research subjects include isospin dependences of nuclear equation of state, spin-isospin responses of exotic nuclei, new correlations at low-densities (with SAMURAI and SHARAQ spectrometers), mass measurements of short-lived nuclei (with the Rare RI Ring).

Application of the triplet-DNP technique to nuclear physics, material and life sciences is proceeding.

Main Research Fields

Mathematical & Physical Sciences

Related Research Fields

Complex Systems

Keywords

Nuclear Physics
Radiation measurement
Ion optics
Dynamic Nuclear Polarization
Nuclear Magnetic Resonance

Selected Publications

1. C. Lee, R. Tsuji, Y. Kubota et al.:
"Proton-Induced Deuteron Knockout (p,pd) on ¹²C and ¹⁶O at 226MeV"
Progress of Theoretical and Experimental Physics 2026, 053D01 (2026)
2. K. Tateishi, S. Otsuka, A. Yamaji, S. Kurosawa, and T. Uesaka:
"¹H polarization above 60% at room temperature by triplet dynamic nuclear polarization"
Chemical Physics Letters 885, 142606 (2026)
3. Y. Hijikata, J. Zenihiro et al.:
"First Extraction of the Matter Radius of ¹³²Sn via Proton Elastic Scattering at 200 MeV/Nucleon"
Progress of Theoretical and Experimental Physics 2026, 013D02 (2026).
4. Y.L. Sun et al.:
"Identification of a universal three-body s-wave resonance in ¹⁰He"
Nature Communications 17, 4674 (2026).
5. A. Sakaue et al.:
"Candidate for the Double Gamow–Teller Giant Resonance in ⁴⁸Ca Studied by the (¹²C, ¹²Be(0⁺₂)) Reaction at 250 MeV/Nucleon"
Progress of Theoretical and Experimental Physics 2024, 123D03 (2024)
6. Y. Kondo et al.:
"First observation of ²⁸O"
Nature 620, 965 (2023).
7. H.F. Li, S. Naimi et al.:
"First Application of Mass Measurements with the Rare-RI Ring Reveals the Solar r-Process Abundance Trend at A = 122 and A = 123"
Physical Review Letters 128, 152701 (2022).
8. J. Tanaka, Z. Yang et al.:
"Formation of α clusters in dilute neutron-rich matter"
Science 371, 260 (2021).
9. Y. Kubota, A. Corsi et al.:
"Surface localization of the dineutron in ¹¹Li"
Physical Review Letters 125, 252501 (2020).
10. J. Yasuda, M. Sasano et al.:
"Extraction of the Landau-Migdal Parameter from the Gamow-Teller Giant Resonance in ¹³²Sn"
Physical Review Letters 121, 132501 (2018).