4 papers
Integral Transformations for Conformally Invariant Celestial Amplitudes
Aphiwat Yuenyong, Pongwit Srisangyingcharoen, Ekapong Hirunsirisawat +1
We propose an integral transformation for celestial gluon amplitudes that maps the celestial coordinates \((z_i,\bar z_i)\) to a new set of complex variables \((s_i,\bar s_i)\), in…
From AdS Propagators to Celestial Propagators
Pongwit Srisangyingcharoen
In this paper, we investigate how AdS scalar propagators are represented in the celestial basis. Starting from the standard bulk-to-boundary propagator in Euclidean AdS space, we e…
Two-point tree-level string amplitudes as AdS transition amplitudes
Pongwit Srisangyingcharoen, Jongruk Pukdee
We compute the two-point open string and closed string amplitudes at tree level and show that, in a 't Hooft-like limit, they take a form structurally analogous to boundary-to-boun…
On-shell Recursion Relations for Tree-level Closed String Amplitudes
Pongwit Srisangyingcharoen, Aphiwat Yuenyong
We derive a general expression for on-shell recursion relations of closed string tree-level amplitudes. Starting with the string amplitudes written in the form of the Koba-Nielsen…