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One-Jettiness Distribution Contains Super-Super-Leading Logarithms.

Andrea Banfi1, Jeffrey R Forshaw2, Jack Holguin2

  • 1University of Sussex, Department of Physics and Astronomy, Brighton BN1 9RH, United Kingdom.

Physical Review Letters
|June 22, 2026
PubMed
Summary
This summary is machine-generated.

We found superleading logarithms in color-singlet plus jet production at a higher order than previously known. This discovery impacts understanding parton distribution functions at high energy scales.

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Area of Science:

  • High Energy Physics
  • Quantum Chromodynamics
  • Particle Physics

Background:

  • Color-singlet plus jet production is a key process in high energy physics.
  • Understanding theoretical calculations requires managing complex logarithmic terms.

Purpose of the Study:

  • To investigate the behavior of one-jettiness (τ_{1}) in color-singlet plus jet production.
  • To identify and characterize the dominance of superleading logarithms in this process.

Main Methods:

  • Analysis of perturbative quantum chromodynamics at higher orders.
  • Examination of the structure of logarithmic terms in scattering processes.

Main Results:

  • Identified superleading logarithms in one-jettiness at order α_{s}^{4}ln(1/τ_{1})^{6}.
  • This represents a more dominant logarithmic contribution than previously observed.
  • The extra logarithm is consistent with parton distribution function factorization.

Conclusions:

  • The findings provide a deeper understanding of theoretical calculations in particle physics.
  • This work contributes to the precise prediction of scattering processes at high energies.
  • The results support the factorization properties of parton distribution functions.