ar X iv : h ep - p h / 02 11 13 0 v 1 9 N ov 2 00 2 1 Twist - 3 effects for polarized virtual photon structure function
نویسنده
چکیده
We investigate twist-3 effects in the polarized virtual photon. The structure function g γ 2 , which exists only for the virtual photon target and can be measured in future polarized e + e − collider experiments, receives both twist-2 and twist-3 contributions. The twist-3 part is analyzed in pure QED interaction as well as in LO QCD. We find the twist-3 contribution is appreciable for the photon in contrast to the nucleon case.
منابع مشابه
ar X iv : h ep - p h / 02 02 14 2 v 2 1 8 A pr 2 00 2 Polarized Virtual Photon Structure Function g γ 2 and Twist - 3 Effects in QCD
We investigate the twist-3 effects in the polarized virtual photon structure. The structure functions g 1 and g γ 2 of polarized photon could be experimentally studied in the future polarized ep or ee colliders. The leading contributions to g 1 are the twist-2 effects, while another structure function g 2 , which only exists for the virtual photon target, receives not only the twist-2 but also ...
متن کاملar X iv : h ep - p h / 02 02 14 2 v 1 1 5 Fe b 20 02 Polarized Virtual Photon Structure Function g γ 2 and Twist - 3 Effects in QCD
We investigate the twist-3 effects in the polarized virtual photon structure. The structure functions g 1 and g γ 2 of polarized photon could be experimentally studied in the future polarized ep or ee colliders. The leading contributions to g 1 are the twist-2 effects, while another structure function g 2 , which only exists for the virtual photon target, receives not only the twist-2 but also ...
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