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Nucleon’s strange electromagnetic and scalar matrix elements

Randy Lewis

W. Wilcox

R. M. Woloshyn

  • Department of Physics, University of Regina, Regina, Saskatchewan, Canada S4S 0A2

  • Department of Physics, Baylor University, Waco, Texas 76798-7316

  • TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3

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Phys. Rev. D 67, 013003 – Published 21 January, 2003

DOI: https://doi.org/10.1103/PhysRevD.67.013003

Abstract

Quenched lattice QCD simulations and quenched chiral perturbation theory are used together for this study of strangeness in the nucleon. Dependences of the matrix elements on strange quark mass, valence quark mass and momentum transfer are discussed in both the lattice and chiral frameworks. The combined results of this study are in good agreement with existing experimental data and predictions are made for upcoming experiments. Possible future refinements of the theoretical method are suggested.

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Phys. Rev. D 67, 013003– Published 21 January, 2003
  • Received 7 October 2002

© 2003 American Physical Society

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