2 papers
hep-th2020
Relativistic partial waves for celestial amplitudes
Y. T. Albert Law, Michael Zlotnikov
The formalism of relativistic partial wave expansion is developed for four-point celestial amplitudes of massless external particles. In particular, relativistic partial waves are…
hep-th2020
Massive Spinning Bosons on the Celestial Sphere
Y. T. Albert Law, Michael Zlotnikov
A natural extension of the Pasterski-Shao-Strominger (PSS) prescription is described, enabling the map of Minkowski space amplitudes with massive spinning external legs to the cele…