Modified celestial amplitude in Einstein gravity
Shamik Banerjee, Sudip Ghosh, Pranjal Pandey, Arnab Priya Saha
Abstract
A bstract In this paper we evaluate the modified celestial amplitude for gravitons and gluons, as defined in [4]. We find that the modified (tree) amplitude is finite for gravitons in Einstein gravity. The modified amplitude behaves like correlation function of operators inserted at various points of null-infinity in the Minkowski space-time. Therefore, unlike the standard celestial amplitudes, these are three dimensional objects. We also show that this amplitude admits conformal soft factorization recently studied in the literature.
Topics & Concepts
PhysicsGravitonAmplitudeMinkowski spaceEinsteinMathematical physicsFactorizationConformal mapGravitationScattering amplitudeQuantum electrodynamicsClassical mechanicsGravitational waveFunction (biology)Anomaly (physics)Theoretical physicsCosmologyf(R) gravityObservatoryConformal gravityBlack Holes and Theoretical PhysicsCosmology and Gravitation TheoriesNoncommutative and Quantum Gravity Theories