Polarized Virtual Photon Structure Function in the Next-to-leading Order in QCD

Details Polarized Virtual Photon Structure Function in the Next-to-leading Order in QCD Polarized Virtual Photon Structure Function in the Next-to-leading Order in QCD

1998-12-16

arxiv.org/abs/hep-ph/9812380v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, LaTeX, 3 Postscript Figures

Scientific paper

The virtual photon structure function $g_1^{\gamma}(x,Q^2,P^2)$, which can be obtained in polarized $e^{+}e^{-}$ colliding-beam experiments, is investigated for $\Lambda^2 \ll P^2 \ll Q^2$, where $-Q^2$ ($-P^2$) is the mass squared of the probe (target) photon. The analysis is made to next-to-leading order in QCD, in the framework of the QCD improved parton model with the DGLAP evolution equations. The non-leading corrections significantly modify the leading log result, in particular, at large $x$ as well as at small $x$.

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