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Factorization properties of the diffraction dissociation of longitudinal photons

Abstract : We develop the pQCD description of the diffraction dissociation (DD) of longitudinal photons. We demonstrate that the longitudinal diffractive structure function does not factor into the Aux of pomerons and the partonic structure function of the pomeron, thus defying the usually assumed Regge factorization. In contrast to DD of the transverse photons, DD of the longitudinal photons is strongly peaked at beta = 1. We comment on duality properties of DD in deep inelastic scattering.
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M. Genovese, N.N. Nikolaev, B.G. Zakharov. Factorization properties of the diffraction dissociation of longitudinal photons. Physics Letters B, Elsevier, 1996, 380, pp.213-219. ⟨10.1016/0370-2693(96)00478-9⟩. ⟨in2p3-00389706⟩

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