α-Clustering in atomic nuclei from first principles with statistical learning and the Hoyle state character.

ABSTRACT: A long-standing crucial question with atomic nuclei is whether or not α clustering occurs there. An α particle (helium-4 nucleus) comprises two protons and two neutrons, and may be the building block of some nuclei. This is a very beautiful and fascinating idea, and is indeed plausible because the α particle is particularly stable with a large binding energy. However, direct experimental evidence has never been provided. Here, we show whether and how α(-like) objects emerge in atomic nuclei, by means of state-of-the-art quantum many-body simulations formulated from first principles, utilizing supercomputers including K/Fugaku. The obtained physical quantities exhibit agreement with experimental data. The appearance and variation of the α clustering are shown by utilizing density profiles f

SUBMITTER: Otsuka T 

PROVIDER: S-EPMC9046222 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature