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Mattingly, S , Reeder, D D , Smith, W H , Vaiciulis, A , Wildschek, T , Wodarczyk, M , Deshpande, A , Dhawan, S , Hughes, V W , Bhadra, S , Cole, J E , Frisken, W R , Hall-Wilton, R , Khakzad, M , Menary, S , Schmidke, W B and , ZEUS Collaboration (2000) Measurement of the E-T(2),jet/Q(2) dependence of forward-jet production at HERA. Physics Letters B, 474 (1-2).
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The forward-jet cross section in deep inelastic e(+)p scattering has been measured using the ZEUS detector at HERA with an integrated luminosity of 6.36 pb(-1). The jet cross section is presented as a function of jet transverse energy squared, E-T,jet(2), and Q(2) in the kinematic ranges 10(-2) < E-T,jet(2)/Q(2) < 10(2) and 2.5.10(-4) < x < 8.0.10(-2). Since the perturbative QCD predictions for this cross section are sensitive to the treatment of the log(E-T,jet(2)/Q(2)) terms, this measurement provides an important test. The measured cross section is compared to the predictions of a next-to-leading order pQCD calculation as well as to various leading-order Monte Carlo models. Whereas the predictions of all models agree with the measured cross section in the region of small E-T,jet(2)/Q(2), only one model, which includes a resolved photon component, describes the data over the whole kinematic range. (C) 2000 Elsevier Science B.V. All rights reserved.
This is a Submitted version This version's date is: 10/2/2000 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/de90869c-a8f0-7aa4-d90b-2bd72656f249/7/
Deposited by Research Information System (atira) on 18-Nov-2014 in Royal Holloway Research Online.Last modified on 18-Nov-2014