Y. Xu

A prominent $π^{0}π^{0}$ mass threshold enhancement, mirroring the $π^+π^-$ channel, is definitively observed in $ψ(3686)$ decays, challenging simple chiral descriptions.

$U$-spin symmetry is substantially broken in $D^0 \to K\pi\pi$ decays, with measured breaking parameters reaching magnitudes up to $4.45$.

Far-side spiral arms of the Milky Way converge toward a single inner-Galaxy feature, providing the most direct astrometric evidence to date for a bifurcated Galactic disc architecture.

Direct-temperature metallicity measurements at $z \sim 11$ prove that massive galaxies can reach ~10% solar metallicity and accumulate significant dust less than 450 million years after the Big Bang.