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arXiv · hep-ph/0603006

Deep Inelastic Structure Functions at small x

B. I. Ermolaev·M. Greco·S. I. Troyan
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Abstract

Explicit expressions for the non-singlet and singlet structure functions g_1 in the small-x region are obtained. They include the total resummation of the double- and single- logarithms of x and account for the running QCD coupling effects. Both the non-singlet and singlet structure functions are Regge behavied asymptotically, with the intercepts predicted in agreement with experiments. A detailed comparison with the DGLAP evolution equations for different values of x and Q^2 is performed. Finally, the role played by singular terms in DGLAP fits is discussed and explicitly shown to mimic the resummation of leading logarithms at small x.

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B. I. Ermolaev, M. Greco, S. I. Troyan. 2006-03-01. Deep Inelastic Structure Functions at small x. https://doi.org/10.1142/9789812772657_0038

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