Chekanov, S;
Derrick, M;
Krakauer, D;
Magill, S;
Musgrave, B;
Pellegrino, A;
Repond, J;
... Standage, J; + view all
(2002)
Dijet photoproduction at HERA and the structure of the photon.
EUR PHYS J C
, 23
(4)
615 - 631.
10.1007/s100520200936.
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Abstract
The dijet cross section in photoproduction ha's 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, Q(2), of less than 1 GeV2 and a photon-proton centre-of-mass energy in the range 131 < W-yp < 277 GeV. Each event contains at least two jets satisfying transverse-energy requirements of E-T(jet1) > 14 GeV and E-T(jet2) > 11 GeV and pseudorapidity requirements of -1 < eta(jet1,2) < 2.4. The measurements arc compared to next-to-loading-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.
| Type: | Article |
|---|---|
| Title: | Dijet photoproduction at HERA and the structure of the photon |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s100520200936 |
| Keywords: | STRUCTURE-FUNCTION F-2(GAMMA), JET CROSS-SECTIONS, TO-LEADING ORDER, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, PARTON DISTRIBUTIONS, HADRON-COLLISIONS, LOW-X, Q(2) EVOLUTION, SCATTERING |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10191 |
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