Derives PDEs for MHV celestial amplitudes in Liouville theory, computes logarithmic b² corrections, and shows the gluon OPE deformation at this order is isomorphic to the one-loop correction in pure Yang-Mills.
Pasterski, The European Physical Journal C 81, 1062 (2021)
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Partial Differential Equations for MHV Celestial Amplitudes in Liouville Theory
Derives PDEs for MHV celestial amplitudes in Liouville theory, computes logarithmic b² corrections, and shows the gluon OPE deformation at this order is isomorphic to the one-loop correction in pure Yang-Mills.