3 papers
hep-th2026
Off-shell recursion for all-loop planar integrands in Yang-Mills theory
Yi-Xiao Tao
In this letter, we focus on the application of the off-shell recursion method proposed in \cite{Tao:2025fch} in the Yang-Mills planar loop integrands, which starts with solving the…
hep-th2026
Loop integrals in de Sitter spacetime: The parity-split IBP system and -form differential equations
Jiaqi Chen, Bo Feng, Zhehan Qin +1
We develop integration-by-parts (IBP) reduction and differential equations for massive loop integrals of cosmological correlators in de Sitter (dS) spacetime, demonstrating the fea…
hep-th2026
Manifest Moebius invariance of massive tree-level three-point amplitudes in pure spinor superspace
Chen Huang, Carlos R. Mafra, Yi-Xiao Tao
Using BRST cohomology properties in pure spinor superspace and identities for OPE brackets of non-free fields, we obtain a new compact nested-bracket representation of massive tree…