Essential Strangeness in Nucleon Magnetic Moments

Abstract

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 $F_2^s(0)=-0.33{\mu }_N$.

HYP '94 presentation. File is a uuencoded postscript file of a 2 page manuscript including figures. Also available via anonymous ftp from pacific.mps.ohio-state.edu in pub/NTG/Leinweber as StrQrkNmom.ps(.gz) OSU PP #94-0631

References in corpus (2)

• Decuplet Baryon Structure from Lattice QCD
• Stranger Still: Kaon Loops and Strange Quark Matrix Elements of the Nucleon

Cited by in corpus (6)

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• What is ab initio in nuclear theory?
• QCD Equalities for Baryon Current Matrix Elements
• A Lattice QCD Analysis of the Strangeness Magnetic Moment of the Nucleon
• The Decuplet Revisited in $\chi$PT
• Probing Proton Strangeness with Time-Like Virtual Compton Scattering