QCD dipole model and k_T factorization

Abstract

It is shown that the colour dipole approach to hard scattering at high energy is fully compatible with k_T factorization at the leading logarithm approximation (in -log x_Bj). The relations between the dipole amplitudes and unintegrated diagonal and non-diagonal gluon distributions are given. It is also shown that including the exact gluon kinematics in the k_T factorization formula destroys the conservation of transverse position vectors and thus is incompatible with the dipole model for both elastic and diffractive amplitudes.

16 pages, 2 .eps figures

References in corpus (4)

• Diffraction in Deep Inelastic Scattering
• The QCD description of diffractive processes
• Predicting F2D(3) from the dipole cross-section
• Validity of the Color Dipole Approximation for Diffractive Production of Heavy Quarkonium

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