Skewed Parton Distributions and F_2^D at beta -> 1

Details Skewed Parton Distributions and F_2^D at beta -> 1 Skewed Parton Distributions and F_2^D at beta -> 1

2000-10-24

arxiv.org/abs/hep-ph/0010273v1

Phys.Lett.B498:16-22,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX, including five PostScript figures

Scientific paper

10.1016/S0370-2693(00)01372-1

We show that the diffractive structure function is perturbatively calculable in the domain where the diffractive mass is small but still outside the resonance region. In this domain, which can be characterized by Lambda^2/Q^2 << 1-beta << (Lambda^2/Q^2)^1/2, the structure function represents a new observable, which is highly sensitive to the small-x skewed gluon distribution. Our leading order calculation and the estimate of next-to-leading order corrections are consistent with available data and demonstrate the potential of more precise data to put further constraints on skewing effects.

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