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

Session

Session #3

4 Mar 2025, 14:40

Main Lecture Hall (University of Aizu)

Conveners

Session #3

• Peter Ring

63. Nuclear collective excitation based on the finite-amplitude method for the quasiparticle random-phase approximation

Nobuo Hinohara (University of Tsukuba)

04/03/2025, 14:40

Nuclear collective excitation such as giant resonances provides valuable information on understanding the structure of finite nuclei and the equation of state for infinite nuclear matter. The quasiparticle random-phase approximation (QRPA) is a suitable theoretical framework that is capable of describing collective excitation as a superposition of the two-quasiparticle excitation, but it...

12. PARTICLE-VIBRATION COUPLING AND PAIRING CORRELATIONS

Dr Enrico Vigezzi

04/03/2025, 15:05

I will present results concerning the effects of particle-vibration coupling (PVC),
a topic to which Ikuko Hamamoto gave fundamental contributions.

I will discuss how to determine the PVC strength, in particular through
the study of multiplet splittings.
I will then present quantitative microscopic calculations of the
strength function associated with pairing modes in A+2...

5. Generator coordinate method with basis optimization

Moemi Matsumoto (Tohoku University)

04/03/2025, 15:25

The generator coordinate method (GCM) has been a well-known method to describe nuclear collective motions [1]. In GCM, one a priori specifies collective degrees of freedom (collective coordinates), such as nuclear deformations, and superposes many Slater determinants (SDs) within the selected collective subspace. However, there always exists arbitrariness in this approach in the choice of...