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.

Measurement of the E-T(2),jet/Q(2) dependence of forward-jet production at HERA / J., B., S., C., M., D., D., K., S., M., B., M., A., P., J., R., R., S., R., Y., G., A., F., A., P., A., G., B., M., B., L., B., D., B., A., B., G., B., C. G., R., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 474:(2000), pp. 223-233. [10.1016/s0370-2693(99)01478-1]

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

D'AGOSTINI, Giulio;NIGRO, Andrea;
2000

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.
2000
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the E-T(2),jet/Q(2) dependence of forward-jet production at HERA / J., B., S., C., M., D., D., K., S., M., B., M., A., P., J., R., R., S., R., Y., G., A., F., A., P., A., G., B., M., B., L., B., D., B., A., B., G., B., C. G., R., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 474:(2000), pp. 223-233. [10.1016/s0370-2693(99)01478-1]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/496866
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