Feb 2026
Single-minus gluon tree amplitudes are nonzero
Model / AI: GPT-5.2 Pro, OpenAI (unreleased)
verified
GPT-5.2 Pro conjectured the closed-form amplitude formula and an unnamed internal OpenAI model proved it; Guevara, Lupsasca, Skinner and Strominger checked it by hand against the Berends-Giele recursion and Weinberg's soft theorem. Theoretical physics rather than mathematics, and the proving model is undisclosed.
Source review pending. Imported from the original notes; linked claims and artifacts have not been re-audited in this restructuring.