Recursion relations for scattering amplitudes with massive particles
From MaRDI portal
Publication:2028429
DOI10.1007/JHEP03(2021)295zbMATH Open1461.81137arXiv2010.14139MaRDI QIDQ2028429
Author name not available (Why is that?)
Publication date: 31 May 2021
Published in: (Search for Journal in Brave)
Abstract: We use the recently developed massive spinor-helicity formalism [1] of Arkani- Hamed et al. to propose a new class of recursion relations for tree-level amplitudes in gauge theories. These relations are based on a combined complex deformation of massless as well as massive external momenta. We use these relations to study tree-level amplitudes in scalar QCD as well as amplitudes involving massive vector bosons in the Higgsed phase of Yang-Mills theory. We prove the validity of our proposal by showing that in the limit of infinite momenta of two of the external particles, the amplitude once again is controlled by an enhanced Spin-Lorentz symmetry paralleling the proof of BCFW shift for massless gauge theories. Simple examples illustrate that the proposed shift may lead to an efficient computation of tree-level amplitudes.
Full work available at URL: https://arxiv.org/abs/2010.14139
No records found.
No records found.
This page was built for publication: Recursion relations for scattering amplitudes with massive particles
Report a bug (only for logged in users!)Click here to report a bug for this page (MaRDI item Q2028429)
