Document Type
Article
Publication Date
4-1-2002
Abstract
The dijet cross section in photoproduction has been measured with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. The events were required to have a virtuality of the incoming photon, Q2, of less than 1 GeV2 and a photon-proton centre-of-mass energy in the range 134 < Wγp < 277 GeV. Each event contains at least two jets satisfying transverse-energy requirements of ETjet1 > 14 GeV and ETjet2 > 11 GeV and pseudorapidity requirements of -1 < ηjet1,2 < 2.4. The measurements are compared to next-to-leading-order QCD predictions. The data show particular sensitivity to the density of partons in the photon, allowing the validity of the current parameterisations to be tested.
Journal Title
European Physical Journal C
Volume
23
Issue
4
First Page
615
Last Page
631
DOI
https://doi.org/10.1007/s100520200936
First Department
Physics
Recommended Citation
Chekanov, S.; Derrick, M.; Krakauer, D.; Magill, S.; Musgrave, B.; Pellegrino, A.; Repond, J.; Yoshida, R.; Mattingly, Margarita C. K.; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Cara Romeo, G.; Cifarelli, L.; Cindolo, F.; Contin, A.; Corradi, M.; de Pasquale, S.; Giusti, P.; Iacobucci, G.; Levi, G.; Margotti, A.; Massam, T.; Nania, R.; Palmonari, F.; Pesci, A.; and Sartorelli, G., "Dijet Photoproduction at HERA and the Structure of the Photon" (2002). Faculty Publications. 2058.
https://digitalcommons.andrews.edu/pubs/2058
Acknowledgements
Open access article retrieved March 17, 2021 from https://link.springer.com/content/pdf/10.1007/s100520200936.pdf