3 papers
hep-th2026
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…
hep-th2024
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…
hep-th2024
Relations between closed string amplitudes and mixed string amplitudes at tree-level
Aphiwat Yuenyong, Pongwit Srisangyingcharoen
This paper investigates the relationships between closed and mixed string amplitudes at the tree level in string theory. Through the analytic continuation of complex variables, we…