From the 1 of 6 linked papers with an AI index.
6 papers
From Cosmological Cuts to Yang--Mills Wavefunctions in de Sitter Space
Song He, Jiajie Mei, Yuyu Mo
The paper computes tree‑level Yang–Mills wavefunctions in four‑dimensional de Sitter space by analyzing their discontinuities (cosmological cuts) and reconstructs explicit four‑, f…
Hidden simplicity in AdS spinning Mellin amplitudes via scaffolding
Song He, Xiang Li, Yuyu Mo +1
We uncover surprising hidden simplicity in Mellin amplitudes for tree-level AdS holographic correlators for spinning operators, such as AdS "gluons" and "gravitons" (spin 1 and 2).…
Soft Photon, Gluon and Graviton Theorems in (A)dS from Conformal Invariance
Jiajie Mei, Yuyu Mo
We present new soft theorems for photon, gluon, and graviton correlators at tree level in (Anti)-de Sitter space. The results are derived by applying conformal Ward identities to c…
Regge factorization of tree-level QCD amplitudes using a minimal set of lightcone variables
Emmet P. Byrne, Vittorio Del Duca, Einan Gardi +2
We represent the multi-leg tree-level amplitudes of quarks and gluons using a minimal set of lightcone variables, which incorporate all on-shell and momentum conservation condition…
Soft Limits of Gluon and Graviton Correlators in Anti-de Sitter Space
Chandramouli Chowdhury, Arthur Lipstein, Jiajie Mei +1
We derive formulae for the soft limit of tree-level gluon and graviton correlators in Anti-de Sitter space, which arise from Feynman diagrams encoding the Weinberg soft theorems in…
From on-shell amplitude in AdS to cosmological correlators: gluons and gravitons
Jiajie Mei, Yuyu Mo
We recently introduced a recursive bootstrap method for constructing -point gluon and graviton Mellin-momentum amplitudes in (A)dS spacetime. The power of this approach was illu…