Perturbative scattering amplitudes
see also Gauge Theory, Quantum Field Theory, Twistor String Theory
reviews
Multi-Parton Amplitudes in Gauge Theories
by Michelangelo Mangano, Stephen Parke (hep-th/0509223 84 pages, 12 figures)
Calculating Scattering Amplitudes Efficiently
by Lance Dixon (hep-ph/9601359 45 pages, 11 figures)
String-Based Perturbative Methods for Gauge Theories
by Zvi Bern (hep-ph/9304249, 66 pages)
papers
recursion relations
New Recursion Relations for Tree Amplitudes of Gluons
by Ruth Britto, Freddy Cachazo, Bo Feng (hep-th/0412308 27 pages, 6 figures)
Direct Proof Of Tree-Level Recursion Relation In Yang-Mills Theory
by Ruth Britto, Freddy Cachazo, Bo Feng, Edward Witten (hep-th/0501052 10 pages, 1 figure)
Bootstrapping One-Loop QCD Amplitudes with General Helicities
by Carola F. Berger, Zvi Bern, Lance J. Dixon, Darren Forde, David A. Kosower (hep-ph/0604195, 77 pages, 17 figures)