Abstract
In order to obtain polarized parton densities we make a next to leading order QCD fit using experimental data on the deep inelastic structure function ${g}_{1}$ measured on different nucleon targets. This fit is compared with the updated fit to the corresponding spin asymmetries. We get very similar results for all fits and also for different data samples. The integrated gluon contribution at ${Q}^{2}=1 {\mathrm{GeV}}^{2}$ is, as in our previous fits, very small. It seems that only polarized parton densities for the nonstrange quarks $\ensuremath{\Delta}u$ and $\ensuremath{\Delta}d$ are relatively well determined from the present polarized deep inelastic experiments.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
