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Integrability in heavy quark effective theory

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Braun, Vladimir M. ; Ji, Yao ; Manashov, Alexander N.
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 06 Apr 2021 15:31


It was found that renormalization group equations in the heavy-quark effective theory (HQET) for the operators involving one effective heavy quark and light degrees of freedom are completely integrable in some cases and are related to spin chain models with the Hamiltonian commuting with the nondiagonal entry C(u) of the monodromy matrix. In this work we provide a more complete mathematical ...


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