111 citations · 576 across the 26 of their papers we have counts for
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hep-th2014★ 4 cited
Note on off-shell relations in nonlinear sigma model
Gang Chen, Yi-Jian Du, Shuyi Li +1
In this note, we investigate relations between tree-level off-shell currents in nonlinear sigma model. Under Cayley parametrization, all odd-point currents vanish. We propose and p…
hep-th2014★ 4 cited
Nonplanar On-shell Diagrams and Leading Singularities of Scattering Amplitudes
Baoyi Chen, Gang Chen, Yeuk-Kwan E. Cheung +3
Bipartite on-shell diagrams are the latest tool in constructing scattering amplitudes. In this paper we prove that a Britto-Cachazo-Feng-Witten (BCFW)-decomposable on-shell diagram…
hep-th2014★ 6 cited
Permutation Relations of Yangian Invariants, Unitarity Cuts, and Scattering Amplitudes
Peizhi Du, Gang Chen, Yeuk-Kwan E. Cheung
We find a permutation relation among Yangian Invariants -- two Yangian Invariants with adjacent external lines exchanged are related by a simple kinematic factor. This relation is…