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Inclusive Dijet Production at Low Bjorken-x in Deep Inelastic Scattering |
| Reference |
R Poeschl, presented at EPS 2003, Summer 2003 |
| Document |
Conference paper
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| Contact |
Roman Poeschl |
| Abstract |
Dijet production in deep inelastic $ep$ scattering is investigated in the regime of low values of the Bjorken-variable x (10^-4 < x < 10^-2) and low four-momentum transfers Q^2 (5 < Q^2 < 100 GeV^2). The resulting dijet cross sections are compared with perturbative QCD calculations in next-to-leading order. For most dijet variables studied, these calculations can provide a reasonable description of the data over the full phase space region covered, including the regime of very low x. However, large differences are observed for events with small separation in azimuth between the two leading jets. Predictions based on the CCFM evolution equation, which incorporate the ideas of k_t factorization and the concept of unintegrated parton distributions, are able to describe the data, as well as some leading order Monte Carlo programs, which differ mainly in the way they model higher order QCD effects. |
| Comments | Extension to H1prelim-00-031 |
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