Abstract
The energy-energy correlator (EEC) is an observable of wide interest for collider physics and Standard Model measurements, due to both its simple theoretical description in terms of the energy-momentum tensor and its novel features for experimental studies. Significant progress has been made in both applications and higher-order perturbative predictions for the EEC. Here, we analyze the nature of the asymptotic perturbative series for the EEC by determining its analytic form in Borel space under the bubble-sum approximation. This result provides information on the leading and subleading nonperturbative power corrections through renormalon poles. We improve the perturbative convergence of the \( \overline{\textrm{MS}} \) series for the EEC by removing its leading renormalon using an MSR scheme, which is independent of the bubble-sum approximation. Using the leading MSR scheme power correction determined by fits to thrust, we find good agreement with EEC OPAL data already at \( \mathcal{O} \)(\( {\alpha}_s^2 \)).
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Acknowledgments
We thank Andre Hoang, Kyle Lee, Johannes Michel, Ian Moult, Michael Ogilvie, and Aditya Pathak for helpful conversations. This work was supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics from DE-SC0011090. I.S. was also supported in part by the Simons Foundation through the Investigator grant 327942. S.T.S. was partially supported by the U.S. National Science Foundation through a Graduate Research Fellowship under Grant No. 1745302.
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Schindler, S.T., Stewart, I.W. & Sun, Z. Renormalons in the energy-energy correlator. J. High Energ. Phys. 2023, 187 (2023). https://doi.org/10.1007/JHEP10(2023)187
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DOI: https://doi.org/10.1007/JHEP10(2023)187