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OBSERVATION OF HARD SCATTERING IN PHOTOPRODUCTION AT HERA

DERRICK, M; KRAKAUER, D; MAGILL, S; MUSGRAVE, B; REPOND, J; SUGANO, K; STANEK, R; ... IGA, Y; + view all (1992) OBSERVATION OF HARD SCATTERING IN PHOTOPRODUCTION AT HERA. PHYS LETT B , 297 (3-4) 404 - 416.

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Abstract

We report a study of electron proton collisions at very low Q2, corresponding to virtual photoproduction at centre of mass energies in the range 100-295 GeV. The distribution in transverse energy of the observed hadrons is much harder than can be explained by soft processes. Some of the events show back-to-back two-jet production at the rate and with the characteristics expected from hard two-body scattering. A subset of the two-jet events have energy in the electron direction consistent with that expected from the photon remnant in resolved photon processes.

Type: Article
Title: OBSERVATION OF HARD SCATTERING IN PHOTOPRODUCTION AT HERA
Keywords: INELASTIC MUON SCATTERING, CERN PBARP COLLIDER, JET PRODUCTION, CROSS-SECTION, PHOTON, ZEUS, QCD
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
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
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of Arts and Humanities > Dept of Philosophy
URI: http://discovery.ucl.ac.uk/id/eprint/403778
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