NLO QCD predictions for internal jet shapes in DIS at HERA
N. Kauer, L. Reina, J. Repond, D. Zeppenfeld
TL;DR
This paper presents next-to-leading order QCD predictions for internal jet shapes in deep inelastic scattering at HERA, comparing theoretical results with experimental data and analyzing scale dependence across different jet algorithms.
Contribution
It provides the first NLO QCD calculations for internal jet shapes in DIS, matching experimental data without relying on the R_sep parameter.
Findings
Results agree well with ZEUS measurements
Jet shape predictions are stable across various algorithms
Scale dependence analyzed and discussed
Abstract
The transverse momentum flow inside jets is a sensitive measure of internal jet structure. For the current jets in deep inelastic scattering this jet shape measure is determined at order alpha_s^2, i.e. with up to three partons inside a single jet. The scale dependence of jet shapes in various jet algorithms is discussed. Results agree well with recent measurements by the ZEUS Collaboration, without introducing the hadronization parameter R_sep.
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