Probing clustering in excited alpha-conjugate buclei

TL;DR

This paper investigates alpha-particle clustering in excited nuclei by analyzing fragmentation data from calcium-carbon reactions, providing evidence for cluster structures in specific isotopes.

Contribution

It introduces a method to probe alpha clustering in excited nuclei using fragmentation data and model comparisons, revealing new insights into nuclear structure.

Findings

Evidence for alpha clustering in excited $^{16}O$, $^{20}Ne$, and $^{24}Mg$

Comparison with decay models supports simultaneous decay mechanisms

Identification of alpha emission sources in nuclear fragmentation

Abstract

The fragmentation of quasi-projectiles from the nuclear reaction $^{40}$Ca+$^{12}$C at 25 MeV per nucleon bombarding energy was used to produce $\alpha$-emission sources. From a careful selection of these sources provided by a complete detection and from comparisons with models of sequential and simultaneous decays, evidence in favor of $\alpha$-particle clustering from excited $^{16}O$, $^{20}Ne$ and $^{24}Mg$ is reported.