Lu Liu

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 $4.45$.

A single verification prompt is insufficient; learning a reliability score from multiple, complementary perspectives unlocks robust self-verification for VLMs.

Humanoid flips can now be made dramatically safer by selecting policies based on predicted viability, slashing head impacts by over 80% in simulation.

Gradient spikes in LLM training can be 1000x larger than normal, but a new optimizer, SPAM, tames them with momentum reset and spike-aware clipping, boosting performance and memory efficiency.