Essential Strangeness in Nucleon Magnetic Moments

Details Essential Strangeness in Nucleon Magnetic Moments Essential Strangeness in Nucleon Magnetic Moments

1994-07-25

arxiv.org/abs/nucl-th/9407039v1

Nucl.Phys. A585 (1995) 341c-342c

Physics

Nuclear Physics

Nuclear Theory

HYP '94 presentation. File is a uuencoded postscript file of a 2 page manuscript including figures. Also available via anonymo

Scientific paper

10.1016/0375-9474(94)00597-G

Effective quark magnetic moments are extracted from experimental measurements as a function of the strangeness magnetic moment of the nucleon. Assumptions made in even the most general quark model analyses are ruled out by this investigation. Ab initio QCD calculations demand a non-trivial role for strange quarks in the nucleon. The effective moments from QCD calculations are reproduced for a strangeness magnetic moment contribution to the proton of 0.11 $\mu_N$, which corresponds to $F_2^s(0) = -0.33\ \mu_N$.

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