The effect of screening on the $x$ and $Q^2$ bhaviour of $F_2$ slopes

Abstract

A systematic study of $\frac{\partial F_2(x,Q^2)}{\partial \ln Q^2}$ and $\frac{\partial \ln F_2(x,Q^2)}{\partial \ln (1/x)}$ is carried out in pQCD taking screening corrections into account. The result of calculations, which are different from the non screened DGLAP prediction, are compared and shown to agree with the available experimental data as well as a pseudo data base generated from the ALLM'97 parameterization. This pseudo data base allows us to study in detail our predictions over a wider kinematic region than is available experimentally, and allows us to make suggestions for future experiments. Our results are compared with the GRV'94 parameterization (which is used as an input for our calculations) as well as the recently proposed MRST structure functions.

26 pages in latex file,9 figure in eps files, Fig. 3 replaced

References in corpus (18)

• Improved Parton Distributions from Global Analysis of Recent Deep Inelastic Scattering and Inclusive Jet Data
• Diffractive Leptoproduction of Vector Mesons in QCD
• Measurement of the proton and deuteron structure functions, F2p and F2d, and of the ratio sigma(L)/sigma(T)
• A Measurement and QCD Analysis of the Proton Structure Function $F_2(x,Q^2)$ at HERA
• Parton distributions: a study of the new HERA data, ${\alpha }_s$, the gluon and $p\bar{p}$ jet production
• Hard diffractive electroproduction of vector mesons in QCD
• Measurement of the Proton Structure Function F_2 and σ_{tot}^{γ^* p} at Low Q^2 and Very Low x at HERA
• QCD evolution of the gluon density in a nucleus
• A Measurement of the Proton Structure Function F_2(x,Q^2) at Low x and Low Q^2 at HERA
• Parton distributions: a new global analysis
• Decisive test of color transparency in exclusive electroproduction of vector mesons
• Measurement of the Proton Structure Function $F_2$ at low $x$ and low $Q^2$ at HERA
• Measurement of the Total Photon Proton Cross Section and its Decomposition at 200~GeV Centre of Mass Energy
• Parton Densities in a Nucleon
• Diffractive Leptoproduction of Small Masses in QCD
• The $F_2$ slope and shadowing corrections in DIS
• EFFECTS OF SHADOWING IN DOUBLE POMERON EXCHANGE PROCESSES
• Behaviour of the forward peak in hard diffractive leptoproduction of vector mesons

Cited by in corpus (29)

• Geometric scaling for the total gamma^* p cross section in the low x region
• Solution to the evolution equation for high parton density QCD
• Anatomy of the differential gluon structure function of the proton from the experimental data on F_2p
• The survival probability of large rapidity gaps in a three channel model
• Geometric scaling and QCD evolution
• A unitary model for structure functions and diffractive production at small x
• QCD dipole model and k_T factorization
• A Pomeron Approach to Hadron-Nucleus and Nucleus-Nucleus "Soft" Interactions at High Energy
• Deep Inelastic Scattering Data and the Problem of Saturation in Small-x Physics
• Conformal invariant saturation
• Gluon shadowing in the low x region probed by the LHC
• An approximate approach to the nonlinear DGLAP evaluation equation
• Shadowing correction to the gluon distribution behavior at small x
• Momentum Transfer Dependence of the Differential Cross Section for $J/\psi$ Production
• Pomeron effective intercept, logarithmic derivatives of $F_2(x,Q^2)$ in DIS and Regge models
• Seeking the Shadowing in eA Processes
• Has HERA reached a new QCD regime?
• Screening Corrections in Photo and DIS Production of $J/\Psi$
• The behavior of the structure function by using the effective exponent at low-x
• Scaling Violations in the $Q^2$ Logarithmic Derivative of $F_2$
• The Hard and Soft Contributions in Diffraction: A Closer Look
• Constraining the free parameter of the high parton density effects
• A geometrical estimation of saturation of partonic densities
• Structure Functions in Deep Inelastic Lepton-Nucleon Scattering
• Low-x Physics
• What's new at small x
• Summary of the Structure Function Working Group at DIS'99
• Low x Physics
• An Investigation of the Hard Contribution to phi Photoproduction