Scientists Crack the Code of Neon-20’s Mysterious Nuclear Structure

A new study has made a breakthrough in understanding the structure of Neon-20, one of the most stable isotopes of neon. Researchers led by Takayuki Myo, Mengjiao Lyu, and Qing Zhao have used an advanced computational method to map six distinct energy bands within the nucleus, including states previously difficult to model accurately. Their findings, published in 2024, mark a significant step forward in nuclear physics research.

The team employed the multicool method, an extended version of antisymmetrized molecular dynamics (AMD). Unlike traditional AMD calculations, this approach avoids pre-set physical constraints, allowing for greater flexibility in generating basis states. By optimising multiple bases at once, the researchers successfully described both deformed cluster-like states and spherical shell-like structures within Neon-20.

One of the study’s key achievements was accurately modelling the *Kπ = 0+ 2* band—a configuration that has long posed challenges for conventional AMD techniques. In total, six bands were mapped, covering *Kπ = 0+ 1, 4, 0−,* and *2−* states. The work also involved contributions from Hiroshi Masui, Kai Ito, and Yoshiko Kanada-En'yo, who helped refine the method’s application to light nuclei. The results provide fresh insights into the interplay between shell and cluster structures in Neon-20. Beyond this specific isotope, the multicool method shows promise as a versatile tool for studying a broader range of nuclei. Its ability to capture complex nuclear phenomena could improve understanding of fundamental forces shaping atomic nuclei.

This research establishes a robust framework for future studies into exotic nuclear states and extreme nuclear matter conditions. The multicool method’s success in describing Neon-20’s intricate structure suggests it could be applied to other light nuclei, potentially unlocking new discoveries in nuclear physics. The findings have been published as part of ongoing efforts to refine theoretical models of atomic nuclei.