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- W4226402703 abstract "We study the free energy of integrable, asymptotically free field theories in two dimensions coupled to a conserved charge. We develop methods to obtain analytic expressions for its trans-series expansion, directly from the Bethe ansatz equations, and we use this result to determine the structure of its Borel singularities. We find a new class of infrared renormalons which does not fit the traditional expectations of renormalon physics proposed long ago by 't Hooft and Parisi. We check the existence of these new singularities with detailed calculations based on the resurgent analysis of the perturbative expansion. Our results show that the structure of renormalons in asymptotically free theories is more subtle than previously thought, and that large $N$ estimates of their location might be misleading." @default.
- W4226402703 created "2022-05-05" @default.
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- W4226402703 date "2021-11-23" @default.
- W4226402703 modified "2023-09-26" @default.
- W4226402703 title "New renormalons from analytic trans-series" @default.
- W4226402703 doi "https://doi.org/10.48550/arxiv.2111.11951" @default.
- W4226402703 hasPublicationYear "2021" @default.
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