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Evolution Equations for Connected and Disconnected Sea Parton Distributions
It has been revealed from the path-integral formulation of the hadronic
tensor that there are connected sea and disconnected sea partons. The former is
responsible for the Gottfried sum rule violation primarily and evolves the same
way as the valence. Therefore, the DGLAP evolution equations can be extended to
accommodate them separately. We discuss its consequences and implications
vis-a-vis lattice calculations.Comment: Published in PRD, references added. arXiv admin note: text overlap
with arXiv:1603.0735
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