2007/12/31 by Yaron Oz, Stefan Theisen, S. Yankielowicz +1 · 2 citations
Physics and Astronomy · #Amplitude #Black Holes and Theoretical Physics #Computer science #Gluino #Gluon #Mathematical physics #Particle physics #Particle physics theoretical and experimental studies #Perturbation theory (quantum mechanics) #Physics #Planar #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Scattering #Scattering amplitude #Supersymmetry #hep-th
paper · pdf · doi:10.1016/j.physletb.2008.03.019
published as Phys.Lett.B662:297-301,2008 · 10 pages; a comment and references added
arxiv created 2008/02/16 · openalex publication_date 2008/03/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We consider gluon and gluino scattering amplitudes in large N beta-deformed N=4 SYM with real beta. A direct inspection of the planar diagrams shows that the scattering amplitudes to all orders in perturbation theory are the same as in the undeformed N=4 SYM theory. Using the dual sigma-model description, we find the same equality at strong coupling to all orders in the sigma-model loop expansion. Finally, we show that the same analysis holds for gluon scattering amplitudes in a three-parameter deformation of planar N=4 SYM that breaks all the supersymmetry.