Forward jet production in deep inelastic scattering at HERA
May, 199820 pages
Published in:
- Eur.Phys.J.C 6 (1999) 239-252
e-Print:
- hep-ex/9805016 [hep-ex]
Report number:
- DESY-98-050,
- ANL-HEP-PR-98-50
Experiments:
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Abstract:
The inclusive forward jet cross section in deep inelastic scattering has been measured in the region of --Bjorken, ~~ to ~. 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 \xbj is compared to cross sections predicted by various Monte Carlo models. An excess of forward jet production at small \xbj 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.Note:
- 27 pages including 11 figures Report-no: DESY-98-050
- positron p: colliding beams
- positron p: deep inelastic scattering
- jet: electroproduction
- production: small-angle
- small-x
- showers: parton
- Lipatov equation
- DGLAP equation
- color: dipole
- quantum chromodynamics: perturbation theory
References(50)
Figures(12)