Journal article
High-E-T dijet photoproduction at HERA
Physical review. D, Vol.76(7), 072011
10/01/2007
DOI: 10.1103/PhysRevD.76.072011
Abstract
The cross section for high-ET dijet production in photoproduction has been measured with the ZEUS detector at HERA using an integrated luminosity of 81.8pb-1. The events were required to have a virtuality of the incoming photon, Q2, of less than 1GeV2 and a photon-proton center-of-mass energy in the range 142<Wγp<293GeV. Events were selected if at least two jets satisfied the transverse-energy requirements of ETjet1>20GeV and ETjet2>15GeV and pseudorapidity (with respect to the proton beam direction) requirements of -1<ηjet1,2<3, with at least one of the jets satisfying -1<ηjet<2.5. The measurements show sensitivity to the parton distributions in the photon and proton and to effects beyond next-to-leading order in QCD. Hence these data can be used to constrain further the parton densities in the proton and photon.
Details
- Title: Subtitle
- High-E-T dijet photoproduction at HERA
- Creators
- ZEUS CollaborationJ. Repond (Contributor) - Argonne National Laboratory
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Vol.76(7), 072011
- DOI
- 10.1103/PhysRevD.76.072011
- ISSN
- 2470-0010
- eISSN
- 2470-0029
- Publisher
- Amer Physical Soc
- Number of pages
- 19
- Grant note
- PP/E000452/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) PP/E000452/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
- Language
- English
- Date published
- 10/01/2007
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627191202771
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