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VOLUME 80 | ISSUE 6 | PAGE 423
Evolution of high-mass diffraction from the light quark valence component of the pomeron
N. N. Nikolaev+*, W. Schäfer+, B. G. Zakharov*, V. R. Zoller^\square
+IKP(Theorie), Institut für Kernphysik D52428, Jülich, Germany
*L. D. Landau Institute for Theoretical Physics, 117940 Moscow, Russia
^{\square}Institut for Theoretical and Experimental Physics, 117218 Moscow, Russia


PACS: 12.38.-t
Abstract
We analyze the contribution from excitation of the (q\bar q)(f\bar f),(q\bar q)g_1...g_n(f\bar f) Fock states of the photon to high mass diffraction in DIS. We show that the large Q2 behavior of this contribution can be described by the DLLA evolution from the non-perturbative f\bar f valence state of the pomeron. Although of higher order in pQCD, the new contribution to high-mass diffraction is comparable to that from the excitation of the q\bar q g Fock state of the photon.


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