4 papers
Note on higher spins and holographic symmetry algebra
Shamik Banerjee, Suman Guchait, Raju Mandal +1
In this paper we discuss a higher spin extension of the holographic symmetry algebra for graviton and gluon. Our primary observation is that in the presence of higher spin particle…
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…
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…
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…