Nuclear Theory2026-08-102 minarXiv:2608.09386expressPear-Shaped Echo in Neighboring NucleiThe atomic nucleus isn't always round like a billiard ball. Some nuclei stretch out like a rugby ball, while others become pear-shaped — with one end thicker than the other.Bui Minh Loc·Hoang Thai An·Nguyen Le Anh·Panagiota Papakonstantinou·Naftali AuerbachWolfgang PauliNMR spectroscopyStandard Model👍👎☆SimplePopularAdvanced