3 papers
hep-th2026
Towards celestial CFT dual of 4d conformal gravity
Nirmal Ghorai, Partha Paul, Nemani V. Suryanarayana
We compute tree-level celestial operator product expansions (OPE) in a bosonic sub-sector of the Berkovits-Witten conformal supergravity from the scattering amplitudes in the MHV c…
hep-th2026
Celestial dual of conformal gravity MHV amplitudes: an OPE analysis
Nirmal Ghorai, Partha Paul, Nemani V. Suryanarayana
In an earlier paper [arXiv:2511.03669] we extracted the OPE of celestial CFT operator duals of positive helicity graviton and scalar particles from the Mellin transformed relevant…
hep-th2024
Singularity Structure of the Four Point Celestial Leaf Amplitudes
Raju Mandal, Sagnik Misra, Partha Paul +1
In this paper, we study the four-point celestial leaf amplitudes of massless scalar and MHV gluon scattering. These leaf amplitudes are non-distributional decompositions of the cel…