Unitarization of Structure Functions at Large $1/x$

Abstract

We discuss the effects of the $s$-channel unitarization on the $x$ and $Q^2$ dependence of structure functions. The unitarization is implemented at the level of photoabsorption cross sections by resorting to the light--cone wave functions of virtual photons and to the diagonalization property of the scattering matrix in a basis of Fock states of the photon with fixed transverse size. Triple pomeron effects are also explicitly taken into account. We find large unitarity corrections to the structure functions at $x<10^{-2}$. The results are in very good agreement with the existing NMC and the preliminary HERA data.

12 pages

References in corpus (2)

• Total cross sections
• Non universality of structure functions and measurement of the strange sea density

Cited by in corpus (27)

• Saturation Effects in Deep Inelastic Scattering at low $Q^2$ and its Implications on Diffraction
• Hard diffractive electroproduction of vector mesons in QCD
• The triple-pomeron regime and the structure function of the pomeron in the diffractive deep inelastic scattering at very small x
• Scanning the BFKL pomeron in elastic production of vector mesons at HERA
• On determination of the large-$\frac{1}{x}$ gluon distribution at HERA
• Diffractive Vector Meson Production at HERA: from Soft to Hard QCD
• Small x Phenomenology - summary of the 3rd Lund Small x Workshop in 2004
• Anatomy of the differential gluon structure function of the proton from the experimental data on F_2p
• BFKL evolution and universal structure function at very small $x$
• The diffraction cone for exclusive vector meson production in deep inelastic scattering
• Vector Meson Production in the Golec-Biernat Wuesthoff Model
• Partonic Picture of Nuclear Shadowing at Small x
• QCD dipole model and k_T factorization
• Investigating the inclusive transverse spectra in high-energy $pp$ collisions in the context of geometric scaling framework
• Nonlinear kT factorization for Forward Dijets in DIS off Nuclei in the Saturation Regime
• Transition between soft physics at LHC and low-x physics at HERA
• Twist-4 effects and $Q^2$ dependence of diffractive DIS
• LHC soft physics and TMD gluon density at low x
• The color dipole model bounds with the gluon-gluon recombination correction
• Why Breakup of Photons and Pions into Forward Dijets Is so Different: Predictions from Nonlinear Nuclear k_t-factorization
• Diffraction driven steep rise of spin structure function $g_{LT}=g_1+g_2$ at small x and DIS sum rules
• Multiplicity dependence of ${\chi }_c$ and ${\chi }_b$ meson production
• Saturation model in the non-Glauber approach
• Strangeness production in high-multiplicity events
• Saturation of gluon density and soft p-p collisions at LHC
• Low-x Physics
• Novel Heavy-Quark Physics Phenomena