Diffractive Production of Jets and Weak Bosons, and Tests of Hard-Scattering Factorization

Details Diffractive Production of Jets and Weak Bosons, and Tests of Hard-Scattering Factorization Diffractive Production of Jets and Weak Bosons, and Tests of Hard-Scattering Factorization

1997-01-24

arxiv.org/abs/hep-ph/9701374v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, LaTeX with psfig and amsfonts, 6 postscript figures

Scientific paper

We extract diffractive parton densities from diffractive, deep inelastic (DIS) ep data from the ZEUS experiment. Then we use these fits to predict the diffractive production of jets and of W's and Z's in p\bar p collisions at the Tevatron. Although the DIS data require a hard quark density in the pomeron, we find fairly low rates for the Tevatron processes (a few percent of the inclusive cross section). This results from the combined effects of Q^{2} evolution and of a normalization of the parton densities to the data. The calculated rates for W production are generally consistent with the preliminary data from the Tevatron. However, the jet data from CDF with a ``Roman pot'' trigger are substantially lower than the results of our calculations; if confirmed, this would signal a breakdown of hard-scattering factorization.

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