Unintegrated parton distributions
Copyright policy )Unintegrated parton distributions
We describe how to calculate the parton distributions $f_a(x, k_t^2, ��^2)$, unintegrated over the parton transverse momentum $k_t$, from auxiliary functions $h_a(x, k_t^2)$, which satisfy single-scale evolution equations. The formalism embodies both DGLAP and BFKL contributions, and accounts for the angular ordering which comes from coherence effects in gluon emission. We check that the unintegrated distributions give the measured values of the deep inelastic structure function $F_2(x, Q^2)$.
LaTeX, 19 pages including 5 figures, submitted to Phys. Rev. D
- Durham University United Kingdom
- UNIVERSITY OF DURHAM
- University of Durham Finland
- Physics department Switzerland
- Petersburg Nuclear Physics Institute United States
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences
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