Spin Quantization in Heavy Ion Collision

TL;DR

This paper investigates spin quantization effects in heavy ion collisions, analyzing experimental data with a hybrid alpha-cluster model, revealing toroidal structures and quantum-classical transition phenomena.

Contribution

It introduces a hybrid alpha-cluster model to analyze high-spin disassembly of $^{28}$Si, identifying resonant energies and toroidal structures in the process.

Findings

Resonant energies identified for various $l$-values.

Toroidal-like structures observed in coordinate and momentum space.

Transition from quantum to classical mechanics highlighted.

Abstract

We analyzed recent experimental data on the disassembly of $^{28}$Si into 7$\alpha$ in terms of a hybrid $\alpha$-cluster model. We calculated the probability of breaking into several $\alpha$-like fragments for high $l$-spin values for identical and non-identical spin zero nuclei. Resonant energies were found for each $l$-value and compared to the data and other theoretical models. Toroidal-like structures were revealed in coordinate and momentum space when averaging over many events at high $l$. The transition from quantum to classical mechanics is highlighted.