Differences

This shows you the differences between two versions of the page.

@@ Line 1: / Line 1: @@
+====== TTP02-22 Non-Singlet Structure Functions at Three Loops: Fermionic Contributions ======
+   <hidden TTP02-22  Non-Singlet Structure Functions at Three Loops: Fermionic Contributions >        We compute the fermionic (n_f) contributions to the flavour
+ non-singlet structure functions in unpolarized electromagnetic
+ deep-inelastic scattering at third order of massless
+        perturbative QCD. Complete results are presented for the
+ corresponding nf-parts of the three-loop anomalous dimension and the
+ three-loop coefficient functions for the structure
+        functions F_2 and F_L. Our results agree with all partial and
+ approximate results available in the literature. The present calculation
+ also facilitates a complete determination of the
+        threshold-resummation parameters B_2 and D_2^DIS of which only the
+ sum was known so far, thus completing the information required for the
+ next-to-next-to-leading logarithmic
+        resummation. We find that D_2^DIS vanishes in the MSbar scheme.
+ </hidden>
+|**S. Moch, J.A.M. Vermaseren and A. Vogt**  |
+|**  Nucl.Phys.  B646 181-200 2002  **  |
+| {{preprints:2002:ttp02-22.pdf|PDF}} {{preprints:2002:ttp02-22.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0209100|arXiv]]   |
+| |