Small Strange Quark Content of Protons

Abstract

The contribution of strange sea quarks to the proton mass and spin, as well as the related pion-nucleon sigma term, are briefly revisited, in the light of new experimental and lattice results. Also the predictions of chiral perturbation theory for these quantities are discussed.

5 pages, plain LaTeX

References in corpus (5)

• Determination of ${\alpha }_s$ and the Nucleon Spin Decomposition Using Recent Polarized Structure Function Data
• Extracting nucleon strange and anapole form factors from world data
• Strange Electric Form Factor of the Proton
• Pion Chiral Symmetry Breaking in the Quark-Level Linear Sigma Model and Chiral Perturbation Theory
• Nucleon strangeness and spin crisis?