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hep-th2023★ 4 cited
Rational Q-systems at Root of Unity I. Closed Chains
Jue Hou, Yunfeng Jiang, Yuan Miao
The solution of Bethe ansatz equations for XXZ spin chain with the parameter being a root of unity is infamously subtle. In this work, we develop the rational -system for th…
hep-ph2023★ 1 cited
Collinearly Enhanced Realizations of the YFS MC Approach to Precision Resummation Theory
S. Jadach, B. F. L. Ward, Z. A. Was
We extend the YFS IR resummation theory to include all of the attendant collinear contributions which exponentiate. This improves the original YFS formulation in which only a part…