ar X iv : h ep - p h / 05 11 22 3 v 1 18 N ov 2 00 5 Strangeness spin , magnetic moment and strangeness configurations of the proton

The implications of the empirical signatures for the positivity of the strangeness magnetic moment μs and the negativity of the the strangeness contribution to the proton spin ∆s on the possible uudss̄ configurations of five quarks in the proton are analyzed. The empirical signs for the values for these two observables can only be obtained in configurations where the uuds subsystem is orbitally excited and the s̄ antiquark is in the ground state. The configurations in which the s̄ is orbitally excited, which include the conventional K+Λ0 configuration, with exception of that in which the the uuds component has spin 2, yield negative values for μs. Here the strangeness spin ∆s, the strangeness magnetic moment μs and axial coupling constant G s A are calculated for all possible configurations of the uudss̄ component of the proton. In the configuration with [4]FS [22]F [22]S flavor-spin symmetry, which is likely to have the lowest energy, μs is positive and ∆s ≃ GA ≃ −1/3μs. [email protected] [email protected] [email protected]