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arXiv · 2607.09860

Benchmarking the Nearside Energy-Energy Correlators with Mellin Transform

Yuxun Guo·Feng Yuan
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Abstract

We investigate nearside energy-energy correlators (EECs) at small angles, explicitly incorporating the QCD scaling behavior in both the perturbative and post-confinement regimes through a Mellin-transform framework. As an illustration, we show that a single parameter, $\Lambda$, characterizing the transition scale between the two regimes, provides an excellent description of nearside EECs in $e^+e^-$ annihilation, including the recent ALEPH analysis as well as earlier measurements across different energies, with next-to-next-to-leading-order accuracy and next-to-next-to-leading-logarithmic resummation.

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Yuxun Guo, Feng Yuan. 2026-07-10. Benchmarking the Nearside Energy-Energy Correlators with Mellin Transform. https://arxiv.org/abs/2607.09860

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