1997/05/31 by A Gehrmann-De Ridder, A. Gehrmann-De Ridder, T. Gehrmann +3 · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1016/s0370-2693(97)01186-6
published as Phys.Lett.B414:354-361,1997 · 13 pages, LaTeX, 6 figures included; Discussion on resummation approaches and comparison to recent OPAL data on inclusive photon energy spectrum added; to appear in Phys.Lett.B
arxiv created 1997/09/24 · openalex publication_date 1997/11/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present the results of a calculation of the rate for the annihilation of an e+e- pair into a jet containing an energetic photon and a single further jet at order ααs. By comparing these results with the existing data on the photon + 1 jet rate from the ALEPH Collaboration, we make a first determination of the process independent quark-to-photon fragmentation function Dq → γ(z,μF) at order ααs. We also compare our prediction for the inclusive photon energy spectrum with the recent OPAL measurement.