QCD dipole model and k_T factorization

Details QCD dipole model and k_T factorization QCD dipole model and k_T factorization

2000-09-21

arxiv.org/abs/hep-ph/0009248v1

Nucl.Phys.B593:438-450,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 2 .eps figures

Scientific paper

10.1016/S0550-3213(00)00640-4

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.

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