A Leading-Order, But More Than One-Loop, Calculation of structure functions

Details A Leading-Order, But More Than One-Loop, Calculation of structure functions A Leading-Order, But More Than One-Loop, Calculation of structure functions

1997-06-03

arxiv.org/abs/hep-ph/9706233v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, Latex, 1 figure, uses epsfig.sty and aipproc.sty. Talk presented at the 5th International Workshop on ``Deep Inelasti

Scientific paper

10.1063/1.53596

I present a full leading-order calculation of F_2(x,Q^2) and F_L(x,Q^2), including contributions not only from leading order in \alpha_s, but also from the leading power of \alpha_s for each order in ln(1/x). The calculation is ordered according to the inputs and evolution of the structure functions, and the perturbative form of the inputs is determined. I compare the results of fits to data to those using conventional LO and NLO order calculations, and the correct inclusion of leading ln(1/x) terms is clearly preferred. A prediction for F_L(x,Q^2) is produced which is smaller at small x than that obtained from the conventional approach.

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