Effects of next-to-leading order DGLAP evolution on generalized parton distributions of the proton and deeply virtual Compton scattering at high energy
作者： Hamzeh Khanpour , Muhammad Goharipour , Vadim Guzey
DOI: 10.1140/EPJC/S10052-017-5490-5
关键词:
摘要: We studied the effects of NLO $Q^2$ evolution generalized parton distributions (GPDs) using aligned-jet model for singlet quark and gluon GPDs at an initial scale. found that skewness ratio quarks is a slow logarithmic function reaching $r^S=1.5-2$ $Q^2=100$ GeV$^2$ $r^g \approx 1$ gluons in wide range $Q^2$. Using resulting GPDs, we calculated DVCS cross section on proton pQCD this conjunction with modern parameterizations PDFs (CJ15 CT14) provides good description available H1 ZEUS data kinematic range.
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