
VOLUME 83  ISSUE 5 
PAGE 232

Glue in the pomeron from nonlinear factorization

N. N. Nikolaev^{+*}, W. Schäfer^{+}, B. G. Zakharov^{*}, V. R. Zoller
^{+}Institut für Kernphysik (Theorie), FZ Jülich, D52425 Jülich, Germany ^{*}L.D. Landau Institute for Theoretical Physics RAS, 117940 Moscow, Russia Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia

PACS: 11.80.La, 12.38.Bx, 13.85.t, 13.97.a

Abstract
We derive the nonlinear factorization for the spectrum
of jets in highmass 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 smallβ 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.


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