Flavor Dependence of Sea Quark Structure Functions
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Quark masses are shown to play an important role in the nucleon sea. Our analysis using massive QCD splitting functions demonstrates the existence of two Feynman-$x$ sea regimes. For small $x$ the strange sea is larger while at large $x$ the non-strange light sea is dominant. This crossover effect has been observed in a phenomenological analysis by the CTEQ Collaboration. We also investigate the charm component in the nucleon.
Standard Latex file, 6 pages of text. 2 postscript figures, uuencoded and submitted to hep-ph. (Also available by fax or mail.) MAD/PH/746
Standard Latex file, 6 pages of text. 2 postscript figures, uuencoded and submitted to hep-ph. (Also available by fax or mail.) MAD/PH/746