3 papers
hep-th2026
All loop soft photon theorems and higher spin currents on the celestial sphere
Shamik Banerjee, Raju Mandal, Biswajit Sahoo
Soft factorization theorems can be reinterpreted as Ward identities for (asymptotic) symmetries of scattering amplitudes in asymptotically flat space-time. In this paper we study t…
hep-th2025
Holographic symmetry algebra for the MHV sector revisited
Shamik Banerjee, Mousumi Maitra, Raju Mandal +1
We revisit the holographic symmetry algebra in the MHV sector. We find an infinite dimensional Abelian symmetry algebra whose generators are the conformally soft negative helicity…
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…