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Glue in the pomeron from nonlinear k_\perp-factorization

N. N. Nikolaev·W. Schäfer·B. G. Zakharov·V. R. Zoller
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Abstract

We derive the nonlinear k_\perp-factorization for the spectrum of jets in high-mass diffractive deep inelastic scattering as a function of three hard scales - the virtuality of the photon Q^2, the transverse momentum of the jet and the saturation scale Q_A. In contrast to all other hard reactions studied so far, we encounter a clash between the two definitions of the glue in the pomeron -- from the inclusive spectrum of leading quarks and the small-βevolution of the diffractive cross section. This clash casts a further shadow on customary applications of the familiar collinear factorization to a pQCD analysis of diffractive deep inelastic scattering.

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N. N. Nikolaev, W. Schäfer, B. G. Zakharov, V. R. Zoller. 2006-02-08. Glue in the pomeron from nonlinear k_\perp-factorization. https://doi.org/10.1134/s002136400605002x

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