Abstract
We calculate unpolarized quark distribution functions and the ${F}_{2}$ structure functions for the proton and the neutron. The calculations are preformed in the light-cone frame. For the bare nucleon we have used three different distributions, namely, the spin-0 diquark, the spin-0 plus spin-1 diquark, and the no diquark models. By using perturbative QCD an initial gluon distribution is generated inside the core nucleon. The physical nucleon is assumed to be a superposition of the bare nucleon plus the virtual light-cone Fock states of baryon octets and decuplets and pseudoscalar meson pairs. The initial distributions are evolved. The ${F}_{2}$ structure functions calculated from the evolved distributions are compared with NMC and ZEUS results along with a CTEQ6M fit. Also, it is shown that the meson cloud is a contributing factor to sea-quark asymmetry and to Gottfried sum-rule violation.
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.
