Is the polarized light flavor sea-quark asymmetric?
Toshiyuki Morii, Teruya Yamanishi
Abstract
Simple formulas on Δ d(x)-Δ u(x) are proposed for extracting their values from polarized deep-inelastic semi-inclusive data. The present SMC and HERMES data suggest that Δ d(x)-Δ u(x) is slightly negative, though the precision of the data is not enough for confirming it.
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