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How quark distribution function determine proton structure function? 


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The determination of proton structure function through quark distribution functions involves various methodologies. The dressed quark scenario within the quark exchange model aids in extracting parton distribution functions and understanding the momentum carried by each parton inside the proton . Additionally, advancements in parton distribution functions are achieved through global datasets and machine learning techniques like NNPDF4.0, which incorporate NNLO QCD calculations and account for theoretical improvements such as positivity constraints and sum rule integrability . Furthermore, the dynamical parton model assumption, utilizing DGLAP equations with GLR-MQ-ZRS corrections, provides insights into proton parton distribution functions, especially highlighting the impact of flavor-asymmetric sea components on reproducing structure functions at high Q2 scales . Lattice-QCD calculations further contribute by directly calculating quark distributions and matching them to PDFs, enhancing our understanding of proton structure at the physical pion mass .

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Quark distribution functions, such as PDFs, directly impact proton structure by providing insights into quark momentum and spin distributions within the proton.
Quark distribution functions, especially the gluon distribution, determined by DGLAP equations with corrections, influence proton structure functions, aiding in simulating high-energy scattering processes.
Quark distribution functions, especially the gluon distribution, determined by DGLAP equations with corrections, influence proton structure functions, aiding in simulating high-energy scattering processes accurately.
Quark distribution functions, determined through global datasets and machine learning in NNPDF4.0, play a crucial role in understanding proton structure and its implications on LHC processes.
Quark distribution functions, derived from dressed quark exchange model, determine the proton structure function by calculating parton densities inside the bound proton, as shown in the study.

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