English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the effects of repulsive four-body interactions of $\alpha$particles on nuclear $\alpha$-particle condensates in heavy self-conjugatenuclei using a semi-analytic approach, and find that the repulsive four-bodyinteractions could decrease the critical number of $\alpha$ particles, beyondwhich quasi-stable $\alpha$-particle condensate states can no longer exist,even if these four-body interactions make only tiny contributions to the totalenergy of the Hoyle-like state of $^{16}$O. Explicitly, we study eightbenchmark parameter sets, and find that the critical number $N_\text{cr}$decreases by $|\Delta N_\text{cr}|\sim1-4$ from $N_\text{cr}\sim11$ withvanishing four-body interactions. We also discuss the effects of four-bodyinteractions on energies and radii of $\alpha$-particle condensates. Our studycan be useful for future experiments to study $\alpha$-particle condensates inheavy self-conjugate nuclei. Also, the experimental determination of$N_\text{cr}$ will eventually help establish a better understanding on the$\alpha$-particle interactions, especially the four-body interactions.

Repulsive Four-Body Interactions of $\alpha$ Particles and Quasi-Stable Nuclear $\alpha$-Particle Condensates in Heavy Self-Conjugate Nuclei