Measurement of the E-T(2),jet/Q(2) dependence of forward-jet production at HERA

ZEUS Collaboration; J. Breitweg; S Chekanov; M. Derrick; D Krakauer; S Magill; B. Musgrave; A. Pellegrino; J Repond; R. Stanek; U Mallik; R Yoshida

doi:10.1016/S0370-2693(99)01478-1

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Measurement of the E-T(2),jet/Q(2) dependence of forward-jet production at HERA

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Measurement of the E-T(2),jet/Q(2) dependence of forward-jet production at HERA

ZEUS Collaboration, J. Breitweg, S Chekanov, M. Derrick, D Krakauer, S Magill, B. Musgrave, A. Pellegrino, J Repond, R. Stanek, …

Physics letters. B, Vol.474(1-2), pp.223-233

02/10/2000

DOI: 10.1016/S0370-2693(99)01478-1

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Abstract

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.

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Details

Title: Subtitle: Measurement of the E-T(2),jet/Q(2) dependence of forward-jet production at HERA
Creators: ZEUS Collaboration
J. Breitweg - Argonne National Laboratory
S Chekanov - Argonne National Laboratory
M. Derrick - Argonne National Laboratory
D Krakauer - Argonne National Laboratory
S Magill - Argonne National Laboratory
B. Musgrave - Argonne National Laboratory
A. Pellegrino - National Institute for Subatomic Physics
J Repond (Contributor)
R. Stanek - Argonne National Laboratory
U Mallik (Contributor)
R Yoshida - University of Bristol
Resource Type: Journal article
Publication Details: Physics letters. B, Vol.474(1-2), pp.223-233
DOI: 10.1016/S0370-2693(99)01478-1
ISSN: 0370-2693
eISSN: 1873-2445
Publisher: Elsevier
Number of pages: 11
Language: English
Date published: 02/10/2000
Academic Unit: Physics and Astronomy
Record Identifier: 9984627183902771

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