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We obtain novel factorization identities for non-linear sigma model amplitudes using a new integrand in the CHY double-cover prescription.
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C. Cardona, B. Feng, H. Gomez and R. Huang, “Cross-ratio Identities and Higher-order Poles of CHY-integrand,” JHEP 1609
2016
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H. Gomez, “ Λ \Lambda scattering equations,” JHEP 1606
2016
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H. Gomez, A. Helset in preparation
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2018
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Y. J. Du and Y. Zhang, “Gauge invariance induced relations and the equivalence between distinct approaches to NLSM amplitudes,” JHEP 1807
2018
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C. Cheung and C. H. Shen, “Symmetry for Flavor-Kinematics Duality from an Action,” Phys. Rev. Lett. 118
2018
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