Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-04-26
Nucl.Phys.B724:3-182,2005
Physics
High Energy Physics
High Energy Physics - Phenomenology
137 pages latex, 20 figures
Scientific paper
10.1016/j.nuclphysb.2005.06.020
We compute the full three-loop coefficient functions for the structure functions F_2 and F_L in massless perturbative QCD. The results for F_L complete the next-to-next-to-leading order description of unpolarized electromagnetic deep-inelastic scattering. The third-order coefficient functions for F_2 form, at not too small values of the Bjorken variable x, the dominant part of the next-to-next-to-next-to-leading order corrections, thus facilitating improved determinations of the strong coupling alpha_s from scaling violations. The three-loop corrections to F_L are larger than those for F_2. Especially for the latter quantity the expansion in powers of alpha_s is very stable, for photon virtualities Q^2 >> 1 GeV^2, over the full x-range accessible to fixed-target and collider measurements.
Moch Sven
Vermaseren J. A. M.
Vogt Adam
No associations
LandOfFree
The third-order QCD corrections to deep-inelastic scattering by photon exchange does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The third-order QCD corrections to deep-inelastic scattering by photon exchange, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The third-order QCD corrections to deep-inelastic scattering by photon exchange will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-199498