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Power Corrections to Event Shape Variables measured in ep Deep-Inelastic Scattering

2000/01/06 by K. Rabbertz, Rabbertz, K.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0001051

Ph.D. thesis, RWTH Aachen 12/1998, 140 pages, 22 tables, 51 figures (eps), figures 2.1, 2.2 and 2.4 as low resolution version only

arxiv created 2000/01/06 · openalex publication_date 2000/01/06 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to study event shape variables over a large range of "relevant energy" Q between 7 GeV and 100 GeV. Previously published analysis on thrust, jet broadening, jet mass and C parameter are substantially refined and updated; differential two-jet rates treated as event shapes are presented for the first time. The Q dependence of the mean values is fit to second order calculations of perturbative QCD applying power law corrections proportional to 1/Qp to account for hadronization effects. The concept of these power corrections is tested by a systematic investigation in terms of a non-perturbative parameter alphap-1 and the strong coupling constant.

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