Deep-Inelastic Onium Scattering

Abstract

Using the colour dipole approach of the QCD perturbative (BFKL) Pomeron exchange in onium-onium scattering, we compute the cross section for small but hierarchically different onium sizes. A specific term dependent on the size-ratio is generated. In deep inelastic onium scattering it appears as a scaling violation contribution to the quark structure function near the BFKL singularity. We find that the extension of the formalism for deep inelastic onium scattering to the proton structure function provides a remarkably good 3-parameter fit to HERA data at small x with a simple physical interpretation in terms of the dipole formulation.

10 pages, 2 Postscript figures

References in corpus (6)

• Single and Double BFKL Pomeron Exchange and a Dipole Picture of High Energy Hard Processes
• Unitarity and the BFKL Pomeron
• A Measurement of the Proton Structure Function $F_2(x,Q^2)$
• Dijet Production at Large Rapidity Intervals
• Multiplicity distribution of colour dipoles at small~$x$
• INITIAL-STATE COLOUR DIPOLE EMISSION ASSOCIATED WITH QCD POMERON EXCHANGE

Cited by in corpus (18)

• Proton structure functions in the dipole picture of BFKL dynamics
• Investigating saturation effects in ultraperipheral collisions at the LHC with the color dipole model
• Onium-Onium scattering at fixed impact parameter: exact equivalence between the color dipole model and the BFKL Pomeron
• ${\gamma }^{\ast }{\gamma }^{\ast }$ total cross-section in the dipole picture of BFKL dynamics
• QCD dipole model and k_T factorization
• Towards an unified description of total and diffractive structure functions at HERA in the QCD dipole picture
• Hard Diffraction in the QCD Dipole Picture
• OEDIPUS: Onium Evolution, Dipole Interaction and Perturbative Unitarisation Simulation
• Hard Diffraction From Quasi-Elastic Dipole Scattering
• QCD analysis of the diffractive structure function F_2^{D(3)}
• Virtual photon impact factors with exact gluon kinematic
• High energy factorization predictions for the charm structure function F2^c at HERA
• High Energy Bounds on Soft N=4 SYM Amplitudes from AdS/CFT
• A new determination of the Pomeron intercept in hard processes
• Hard jet probes in terms of colorless QCD dipoles
• Selection rules at the quark-antiquark vertex of the QCD Pomeron
• Deep inelastic scattering of leptons from nuclear targets and the BFKL pomeron
• Forward physics with proton tagging at the LHC