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Determination of the Strange Nucleon Form Factors

Research output: Contribution to journalArticlepeer-review

  • P. E. Shanahan
  • R. Horsley
  • Y. Nakamura
  • D. Pleiter
  • P. E. L. Rakow
  • G. Schierholz
  • H. Stueben
  • A. W. Thomas
  • R. D. Young
  • J. M. Zanotti
  • CSSM QCDSF UKQCD Collaborations

Related Edinburgh Organisations

Original languageEnglish
Article number091802
Number of pages5
JournalPhysical Review Letters
Volume114
Issue number9
DOIs
Publication statusPublished - 3 Mar 2015

Abstract

The strange contribution to the electric and magnetic form factors of the nucleon is determined at a range of discrete values of Q(2) up to 1.4 GeV2. This is done by combining a recent analysis of lattice QCD results for the electromagnetic form factors of the octet baryons with experimental determinations of those quantities. The most precise result is a small negative value for the strange magnetic moment: G(M)(S) (Q(2) = 0) = -0.07 +/- 0.03 mu(N). At larger values of Q(2) both the electric and magnetic form factors are consistent with zero to within 2 standard deviations.

    Research areas

  • MAGNETIC-MOMENT, RADIUS, VECTOR, MODEL, QCD

ID: 21279173