Single-particle and collective motions from nuclear many-body correlation (PCM2025)

Session

session #9

6 Mar 2025, 11:10

Main Lecture Hall (University of Aizu)

Conveners

session #9

• Kouichi Hagino

85. An approach to particle vs collective motion in reaction theory

Prof. George Bertsch (University of Washington)

06/03/2025, 11:10

79. Electromagnetic responses of weakly-bound nuclei

Prof. Hiro Iwasaki (FRIB/MSU)

06/03/2025, 11:35

At the limit of stability, atomic nuclei can exhibit unique structure due to the proximity to the particle-
decay threshold. In particular, if orbitals near the Fermi surface have low angular momenta, they can
induce spatially extended wave functions for valence neutrons, forming nuclear halo. In light p and psd
shells, halo nuclei have so far served as a benchmark for understanding of...

36. Delta-isobar resonance effects on beta and double beta decays in medium heavy nuclei

Hiroyasu Ejiri (RCNP Osaka Univ.)

06/03/2025, 12:00

Astro-$\nu$ interactions are studied by inverse $\beta$ decays and $\nu$-properties beynod the standard model are studied by neutrinoless double beta decays (0$\nu \beta \beta$). The $\beta$ and $\beta \beta$ nuclear matrix elements (NMES) consist mainly of the axial-vector spin ($\sigma$) isospin($\tau$) components, The delta-isobar ($\mathrm{\Delta }$) resonance excited by the quark $\tau \sigma$...