TY - JOUR
T1 - Dijet Photoproduction at HERA and the Structure of the Photon
AU - ZEUS Collaboration
AU - Mattingly, Margarita C. K.
PY - 2002/4
Y1 - 2002/4
N2 - 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 ET jet1 > 14 GeV and ET jet2 > 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.
AB - 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 ET jet1 > 14 GeV and ET jet2 > 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.
UR - https://digitalcommons.andrews.edu/pubs/2058
U2 - 10.1007/s100520200936
DO - 10.1007/s100520200936
M3 - Article
VL - 23
SP - 615
EP - 631
JO - European Physical Journal C
JF - European Physical Journal C
IS - 4
ER -