Aspects of the Unitarized Soft Multipomeron Approach in DIS and Diffraction

Details Aspects of the Unitarized Soft Multipomeron Approach in DIS and Diffraction Aspects of the Unitarized Soft Multipomeron Approach in DIS and Diffraction

2001-10-15

arxiv.org/abs/hep-ph/0110184v2

Eur.Phys.J.C24:109-115,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 5 postscript figures. Version to be published in Eur. Phys. J. C

Scientific paper

10.1007/s100520200911

We study in detail the main features of the unitarized Regge model (CFKS), recently proposed to describe the small-$Q^2$ domain. It takes into account a two-component description with two types of unitarized contributions: one is the multiple pomeron exchange contribution, interacting with the large dipole configurations, and the other one consists of a unitarized dipole cross section, describing the interaction with the small size dipoles. We analyze the ratio between soft and hard pieces as a function of the virtuality, and also compare the resulting dipole cross section to that from the saturation model. Diffraction dissociation is also considered, showing the scaling violations in diffractive DIS and estimating the corresponding logarithmic slope.

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