RG of GR from on-shell amplitudes
Sign Up to like & getrecommendations! Published in 2022 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2022)156
Abstract: Abstract We study the renormalization group of generic effective field theories that include gravity. We follow the on-shell amplitude approach, which provides a simple and efficient method to extract anomalous dimensions avoiding complications from gauge… read more here.
Keywords: shell amplitudes; renormalization;
One-Loop Off-Shell Amplitudes from Classical Equations of Motion.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.081601
Abstract: In this Letter, we present a recursive method for computing one-loop off-shell integrands in colored quantum field theories. First, we generalize the perturbiner method by recasting the multiparticle currents as generators of off-shell tree-level amplitudes.… read more here.
Keywords: shell amplitudes; loop; one loop; loop shell ... See more keywords