One-Loop Amplitudes in Supersymmetric QCD from MHV Vertices

Details One-Loop Amplitudes in Supersymmetric QCD from MHV Vertices One-Loop Amplitudes in Supersymmetric QCD from MHV Vertices

2006-04-28

arxiv.org/abs/hep-th/0604210v3

Prog.Theor.Phys.116:363-403,2006

Physics

High Energy Physics

High Energy Physics - Theory

43pages,5figures,PTPTex;v2 2references and related footnote are added;v3 English is improved, to appear in Prog. Theor. Phys

Scientific paper

10.1143/PTP.116.363

The Cachazo-Svrcek-Witten (CSW) rule for efficiently calculating gauge theory amplitudes is extended to N=1 supersymmetric QCD (SQCD), incorporating massless quarks, in a way preserving the manifest supersymmetry. Using this extended CSW rule, we obtain compact expressions of all the one-loop MHV amplitudes in SQCD including one or two external quark-antiquark (chiral-antichiral multiplets) pairs. The collinear sigularities of the five point amplitudes are investigated to confirm the consistency of the results.

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