Precise determination of the strangeness magnetic moment of the nucleon

Precise determination of the strangeness magnetic moment of the nucleon

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 pr...

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Veröffentlicht in:Physical review letters 2005-06, Vol.94 (21), p.212001.1-212001.4, Article 212001
Hauptverfasser: LEINWEBER, D. B, BOINEPALLI, S, CLOET, I. C, THOMAS, A. W, WILLIAMS, A. G, YOUNG, R. D, ZANOTTI, J. M, ZHANG, J. B
Format: Artikel
Sprache:eng
Schlagworte:
CHIRALITY
Exact sciences and technology
EXTRAPOLATION
MAGNETIC MOMENTS
MASS
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROTONS
QUANTUM CHROMODYNAMICS
QUARKS
SIMULATION
STRANGENESS
SYMMETRY
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Zusammenfassung: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.94.212001