Affiliation:
1. Indian Institute of Science Education and Research Pune 411008 India
Abstract
AbstractUniversal factors associated with the emission of a soft boson in gauge theories and gravity, formulated in the light‐cone gauge, are presented. The inverse‐soft method, for constructing higher‐point amplitudes from lower‐point ones, using these factors is reviewed. These ideas are then examined in (light‐cone) superspace and applied to both the super Yang–Mills and supergravity theories. One highlight is a compact result for the quartic interaction vertex in supergravity, a crucial ingredient for finiteness analyses.
Funder
Department of Science and Technology, Ministry of Science and Technology, India
Subject
General Physics and Astronomy