2024/09/14 by Shen Fang, Fang, Shen, Mei-Sen Gao +5
Medicine · Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Medical Imaging Techniques and Applications #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Radiation Detection and Scintillator Technologies
paper · pdf · doi:10.48550/arxiv.2409.09248
openalex publication_date 2024/09/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present an analysis of lepton-jet azimuthal decorrelation in deep-inelastic scattering (DIS) at next-to-next-to-next-to-leading logarithmic (N3LL) accuracy, combined with fixed-order corrections at O(αs2). In this study, jets are defined in the lab frame using the anti-kT clustering algorithm and the winner-take-all recombination scheme. The N3LL resummation results are derived from the transverse-momentum dependent factorization formula within the soft-collinear effective theory, while the O(αs2) fixed-order matching distribution is calculated using the \tt NLOJET++ event generator. The azimuthal decorrelation between the jet and electron serves as a critical probe of the three-dimensional structure of the nucleon. Our numerical predictions provide a robust framework for precision studies of QCD and the nucleon's internal structure through jet observables in DIS. These results are particularly significant for analyses involving jets in HERA data and the forthcoming electron-ion collider experiments.