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- W2247479706 abstract "The HERMES collaboration recently reported a reevaluation of the strange-quark parton distribution, $S(x)$, based on kaon production in semi-inclusive deep-inelastic scattering. Two distinct results on $S(x)$ at the $x> 0.1$ region, one with a sizable magnitude and another with a vanishing content, were reported. We show that the latter result is due to a particular assumption adopted in the analysis. The impact of the new HERMES $S(x)$ result on the extraction of intrinsic light-quark sea in the proton is discussed. Given the large uncertainty in the kaon fragmentation function, we find that the latest HERMES data do not exclude the existence of a significant intrinsic strange-quark sea in the proton. The $x$ dependence of the $(s+bar s)/(bar u+ bar d)$ ratio is also in qualitative agreement with the presence of intrinsic strange-quark sea." @default.
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- W2247479706 date "2015-09-15" @default.
- W2247479706 modified "2023-10-18" @default.
- W2247479706 title "Extraction of the intrinsic light-quark sea in the proton" @default.
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- W2247479706 doi "https://doi.org/10.1103/physrevd.92.054020" @default.
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