# Amplitudes for higher-dimensional operators ## Refs - $F^3$: - 4 and 5 point: hep-ph/9312363 - all point: [[2004#Dixon, Glover, Khoze]] - [[0067 Double copy|double copy]]: - [[2012#Broedel, Dixon]]: $F^3$, $F^4$, $F^5$ etc. $\to$ $\phi R^2$, $R^3$ etc. - using [[0551 On-shell recursion relations|recursion relations]]: - [[2010#Cohen, Elvang, Kiermaier]]: all-line shifts - [[2015#Cheung, Shen, Trnka]]: defines a covering space of recursion relations which includes [[0058 BCFW|BCFW]] and Risager - [[2023#Ananth, Bhave, Pandey, Pant]]: using [[0515 Inverse soft construction|inverse soft recursion]]