The $s\bar{s}$ component of the proton and the strangeness magnetic moment

Abstract

A complete analysis is given of the implications of the empirical indications for a positive strangeness magnetic moment ${\mu }_s$ of the proton on the possible configurations of the $uuds\bar{s}$ component of the proton. A positive value for ${\mu }_s$ is obtained in the $s\bar{s}$ configuration where the $uuds$ subsystem is in an orbitally excited state with $[4{]}_{[FS]}[22{]}_F[22{]}_S$ flavor-spin symmetry, which is likely to have the lowest energy. The configurations in which the $\bar{s}$ is orbitally excited, which include the conventional $K^{+}{\Lambda }^0$ configuration, with exception of that in which the $uuds$ component has spin 2, yield negative values for ${\mu }_s$. The hidden strangeness analogues of recently proposed quark cluster models for the ${\theta }^{+}$ pentaquark give differing signs for ${\mu }_s$.

4 pages, accepted revised version

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