Diffractive parton distributions from the saturation model
نویسندگان
چکیده
منابع مشابه
Diffractive parton distributions from perturbative QCD
The asymptotic collinear factorisation theorem, which holds for diffractive deep-inelastic scattering, has important modifications in the sub-asymptotic HERA regime. We use perturbative QCD to quantify these modifications. The diffractive parton distributions are shown to satisfy an inhomogeneous evolution equation. We emphasise that it is necessary to include both the gluonic and sea-quark t-c...
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We analyse the latest H1 large rapidity gap data to obtain diffractive parton distributions , using a procedure based on perturbative QCD, and compare them with distributions obtained from the simplified Regge factorisation type of analysis. The diffractive parton densities and structure functions are made publically available. The H1 Collaboration have recently released measurements of diffrac...
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Recently, a semiclassical approach to diffraction has been proposed, which treats the proton as a classical colour field. The present paper demonstrates that this approach is consistent with the concept of diffractive parton distributions. The diffractive quark and gluon distributions are expressed through integrals of nonAbelian eikonal factors in the fundamental and adjoint representation res...
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We determine diffractive parton distribution through the DGLAP based fits to data from HERA. In addition to the leading twist–2 contribution to the diffractive structure functions we also consider twist–4 contribution from longitudinally polarized virtual photons, known to be important in the region of small diffractive masses. We make predictions for the longitudinal structure function F L whi...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2001
ISSN: 1434-6044,1434-6052
DOI: 10.1007/s100520100661