publication . Article . Preprint . 2015

Determination of the Strange Nucleon Form Factors

Shanahan, PE; Horsley, R; Nakamura, Y; Pleiter, D; Rakow, PEL; Schierholz, G; Stueben, H; Thomas, AW; Young, RD; Zanotti, JM; ...
Open Access English
  • Published: 01 Jan 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 $1.4  GeV^2$. 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: $G^s_M(Q^2=0)=−0.07±0.03μN$. At larger values of $Q^2$ both the electric and magnetic form factors are consistent with zero to within 2 standard deviations.
Subjects
arXiv: Nuclear Experiment
free text keywords: ddc:550, High Energy Physics - Lattice, High Energy Physics - Phenomenology, Nuclear Theory
Funded by
EC| HADRONPHYSICS2
Project
HADRONPHYSICS2
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 227431
  • Funding stream: FP7 | SP4 | INFRA
,
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
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