1306.2975 (Mathias Tolotti et al.)

Construction of an effective Yang-Mills Lagrangian with manifest BCJ
duality    [PDF]

Mathias Tolotti, Stefan Weinzierl

The BCJ decomposition is a highly non-trivial property of gauge theories. In this paper we systematically construct an effective Lagrangian, whose Feynman rules automatically produce the BCJ numerators. The effective Lagrangian contains non-local terms. The difference between the standard Yang-Mills Lagrangian and the effective Lagrangian simplifies to zero.

View original: http://arxiv.org/abs/1306.2975