The inclusive forward jet cross section in deep inelastic e(+)p scattering has been measured in the region of x-Bjorken, 4.5.10(-4) to 4.5.10(-2) This measurement is motivated by the search for effects of BFKL-like parton shower evolution. The cross section at hadron level as a function of x is compared to cross sections predicted by various Monte Carlo models. An excess of forward jet production at small x is observed, which is not reproduced by models based on DGLAP parton shower evolution. The Colour Dipole model describes the data reasonably well. Predictions of perturbative QCD calculations at the parton level based on BFKL and DGLAP parton evolution are discussed in the context of this measurement.

Forward jet production in deep inelastic scattering at HERA

CIRIO, Roberto;COSTA, Marco;MONACO, Vincenzo;PERONI, Cristiana;SACCHI, Roberto;SOLANO, Ada Maria;
1999-01-01

Abstract

The inclusive forward jet cross section in deep inelastic e(+)p scattering has been measured in the region of x-Bjorken, 4.5.10(-4) to 4.5.10(-2) This measurement is motivated by the search for effects of BFKL-like parton shower evolution. The cross section at hadron level as a function of x is compared to cross sections predicted by various Monte Carlo models. An excess of forward jet production at small x is observed, which is not reproduced by models based on DGLAP parton shower evolution. The Colour Dipole model describes the data reasonably well. Predictions of perturbative QCD calculations at the parton level based on BFKL and DGLAP parton evolution are discussed in the context of this measurement.
1999
6
239
252
http://dx.doi.org/10.1007/s100500050340
ZEUS; ZEUS BARREL CALORIMETER; MONTE-CARLO GENERATOR; TO-LEADING ORDER; LOW-X REGIME; PARTON DISTRIBUTIONS; MOMENTUM SPECTRA; EVENT GENERATOR; QCD COHERENCE; EP SCATTERING; ENERGY
J. Breitweg;M. Derrick;D. Krakauer;S. Magill;D. Mikunas;B. Musgrave;J. Repond;R. Stanek;R. L. Talaga;R. Yoshida;H. Zhang;M. C. K.;F. Anse...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/108120
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