Abstract
At high center-of-mass energies scattering amplitudes enjoy a hidden integrability. An important example in QCD is Odderon exchange, a composite state of three reggeized gluons, with can be understood as a closed spin chain with periodic boundary conditions. In the \(N = 4\) supersymmetric Yang–Mills theory a similar open spin chain appears for the planar eight-point amplitude. We solve these two examples in transverse momentum and rapidity space, introducing the concept of weighted graph complexity and its associated emerging scaling laws.
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Funding
We acknowledge support from the Spanish Government grants FPA2015-65480-P, FPA2016-78022-P and Spanish MINECO Centro de Excelencia Severo Ochoa Programme (SEV-2016-0597).
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Grigorios Chachamis, Agustín Sabio Vera Reggeon Webs, Spin Chains and the Odderon. Phys. Part. Nuclei Lett. 16, 421–426 (2019). https://doi.org/10.1134/S1547477119050091
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DOI: https://doi.org/10.1134/S1547477119050091