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  • Open Access

Factorization and Resummation for the Near-Side Energy-Energy Correlators

Yuxun Guo1,2,*, Feng Yuan2,†, and Wenbin Zhao1,2,3,‡

  • *Contact author: yuxunguo@lbl.gov
  • †Contact author: fyuan@lbl.gov
  • ‡Contact author: wenbinzhao@lbl.gov
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Phys. Rev. Lett. 136, 081904 – Published 23 February, 2026

DOI: https://doi.org/10.1103/4qkq-x5st

Abstract

By utilizing the dihadron fragmentation formalism, we extend the previous factorization of near-side energy-energy correlators (EECs) in the collinear limit and derive an all order resummation in the Fourier transform bT-space. A perfect matching is obtained when we compare to the fixed-order results. We further demonstrate the resummation effects for the EECs in e+e− annihilation and show that they will significantly improve the theoretical predictions at small angles.

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Physics Subject Headings (PhySH)

See Also

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Article Text

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Outline

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Phys. Rev. Lett. 136, 081904– Published 23 February, 2026
  • Received 29 July 2025
  • Revised 3 November 2025
  • Accepted 18 November 2025
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