Precise determination of the strangeness magnetic moment of the nucleon |
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| Authors: | Leinweber D B Boinepalli S Cloet I C Thomas A W Williams A G Young R D Zanotti J M Zhang J B |
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| Institution: | Special Research Centre for the Subatomic Structure of Matter and Department of Physics, University of Adelaide, Adelaide SA 5005, Australia. |
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| Abstract: | By combining the constraints of charge symmetry with new chiral extrapolation techniques and recent low mass quenched lattice-QCD simulations of the individual quark contributions to the magnetic moments of the nucleon octet, we obtain a precise determination of the strange magnetic moment of the proton. The result, namely, G(s)(M)=(-0.046 +/- 0.019)mu(N) is consistent with the latest experimental measurements but an order of magnitude more precise. This poses a tremendous challenge for future experiments. |
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