Determining the strange and antistrange quark distributions of the nucleon

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2010 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd
, , Citation Cao Fu-Guang et al 2010 Chinese Phys. C 34 1414 DOI 10.1088/1674-1137/34/9/058

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1 Institute of Fundamental Sciences, Massey University, Private Bag 11 222, Palmerston North, New Zealand

2 School of Physical Science and Technology, Southwest University, Chongqing 400715, People's Republic of China

Dates

  1. Received 19 January 2010
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1674-1137/34/9/1414

Abstract

The difference between the strange and antistrange quark distributions, δs(x) = s(x)–bar s (x), and the combination of light quark sea and strange quark sea, Δ(x) = bar d(x) + ū(x) – s(x) –bar s (x), are originated from non-perturbative processes and can be calculated using non-perturbative models of the nucleon. We report calculations of δs(x) and Δ(x) using the meson cloud model. Combining our calculations of Δ(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.

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