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hep-th2022★ 9 cited
Covariant color-kinematics duality, Hopf algebras and permutohedra
Qu Cao, Jin Dong, Song He +1
Based on the covariant color-kinematics duality, we investigate combinatorial and algebraic structures underlying their Bern-Carrasco-Johansson (BCJ) numerators of tree-level ampli…
hep-th2022★ 4 cited
New relations for tree-level form factors and scattering amplitudes
Jin Dong, Song He, Guanda Lin
We show that tree-level form factors with length-two operators in Yang-Mills-scalar (YMS) theory exhibit structures very similar to scattering amplitudes of gluons and scalars, whi…