Glue in the pomeron from nonlinear k ⊥ factorization
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-\beta evolution 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.
- Publication:
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Soviet Journal of Experimental and Theoretical Physics Letters
- Pub Date:
- May 2006
- DOI:
- 10.1134/S002136400605002X
- arXiv:
- arXiv:hep-ph/0602070
- Bibcode:
- 2006JETPL..83..192N
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 9 pages