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Determining the strange and antistrange quark distributions of the nucleon

By Fu-Guang Cao, Hong Chen and A. I. Signal

Abstract

The difference between the strange and antistrange quark distributions, $\delta s(x)=s(x)-\sbar(x)$, and the combination of light quark sea and strange quark sea, $\Delta (x)=\dbar(x)+\ubar(x)-s(x)-\sbar(x)$, are originated from non-perturbative processes, and can be calculated using non-perturbative models of the nucleon. We report calculations of $\delta s(x)$ and $\Delta(x)$ using the meson cloud model. Combining our calculations of $\Delta(x)$ with relatively well known light antiquark distributions obtained from global analysis of available experimental data, we estimate the total strange sea distributions of the nucleon.Comment: 4 pages, 3 figures; talk given by F.-G. at QNP0

Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Year: 2011
DOI identifier: 10.1088/1674-1137/34/9/058
OAI identifier: oai:arXiv.org:1104.5592
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