Deep Inelastic Structure Functions at small x

Prof. Mario Greco

(Rome III University, Italy)

Sala PA2, IST, Edifício Pós-Graduação
Friday, December 9th, 2005 at 02:30 PM


Explicit expressions for the non-singlet and singlet structure functions g_1 in the small x-region are obtained. They include the total re-summation of double-logarithmic contributions and account for the running QCD coupling effects. Both the non-singlet and singlet s. f. are Regge behaved asymptotically, with the intercepts predicted in agreement with experiments. A detailed comparison with the DGLAP evolution for different values of x and Q^2 is performed. Finally, explicit expressions are presented which implement the NLO DGLAP contributions with our small-x results.

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