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Resolved $\gamma^*_L$ in hard collisions of virtual photons: QCD effects

J. Chýla, M. Taševský
2001 European Physical Journal C: Particles and Fields  
The manifestations of QCD effects on quark and gluon distribution functions of longitudinally polarized virtual photons involved in hard collisions are investigated. It is shown that for moderate photon virtualities and in the kinematical region accessible at HERA and LEP these effects are sizable and significantly enhance theoretical predictions based on contributions of transversally polarized virtual photon only.
doi:10.1007/s100520100560 fatcat:ad7wp67hm5hhnl2izrvfapuq5i