NNLO QCD analysis of the virtual photon structure functions
Sasaki, Ken · Ueda, Takahiro · Kitadono, Yoshio · Uematsu, Tsuneo
Original · EN
The next-to-next-to-leading order (NNLO) QCD analysis is performed for the virtual photon structure functions which can be measured in the double-tag events in two-photon processes in e+e- collisions. We investigate the perturbative QCD evaluation of F₂γ(x,Q²,P²) to NNLO and Fₗγ(x,Q²,P²) to NLO with and without taking into account the target mass effects, which are relevant for the large x region. We also carry out the phenomenological analysis for the experimentally accessible effective structure function F effγ=F₂γ+(3/2)Fₗγ.
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