Gauge invariance induced relations and the equivalence between distinct approaches to NLSM amplitudes

19 Jun 2018 Du Yi-Jian Zhang Yong

In this paper, we derive generalized Bern-Carrasco-Johansson relations for color-ordered Yang-Mills amplitudes by imposing gauge invariance conditions and dimensional reduction appropriately on the new discovered graphic expansion of Einstein-Yang-Mills amplitudes. These relations are also satisfied by color-ordered amplitudes in other theories such as color-scalar theory, bi-scalar theory and nonlinear sigma model (NLSM)... (read more)

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  • HIGH ENERGY PHYSICS - THEORY