Strange sea distributions of the nucleon

Details Strange sea distributions of the nucleon Strange sea distributions of the nucleon

2009-12-02

arxiv.org/abs/0912.0351v2

J.Phys.G37:105006,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

version published in J. Phys. G, 14 pages, 3 figures

Scientific paper

10.1088/0954-3899/37/10/105006

The strange and antistrange quark distributions of the nucleon are less constrained by experimental data than the non-strange quark sea. The combination of light quark sea distributions, $\Delta(x)=\dbar(x)+\ubar(x)-s(x)-\sbar(x)$, originates mainly from non-perturbative processes and can be calculated using non-perturbative models of the nucleon. We have calculated $\Delta(x)$ using the meson cloud model, which, when combined with the relatively well known non-strange light antiquark distributions obtained from global analysis of available experimental data, enables us to make new estimates of the total strange sea distributions of the nucleon and the strange sea suppression factor.

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