3 papers
hep-th2026
Soft Algebra for SYM
Luis F. Alday, Andrew Strominger
Scattering amplitudes of particles in nonabelian gauge theories admit factorizations of the general form $\mathcal{A}_n \;=\; \mathcal{A}^{\rm soft}_n \times \mathcal{A}^{\rm h…
hep-th2026
EVERY CFT HAS AN SYMMETRY
Andrew Strominger, Hongji Wei
Recently a one-parameter family of deformed soft symmetry algebras, denoted , acting on tree-level gravitational theories i…
hep-th2026
Single-minus graviton tree amplitudes are nonzero
Alfredo Guevara, Alexandru Lupsasca, David Skinner +2
Single-minus tree-level -graviton scattering amplitudes are revisited. Often presumed to vanish, they are shown here to be nonvanishing for certain "half-collinear" configuratio…