The strange-quark vector current form factors of the nucleon are analyzed within the framework of dispersion relations. Particular attention is paid to contributions made by KK intermediate states to the form factor spectral functions. It is shown that, when the KK→NN amplitude is evaluated in the Born approximation, the KK contributions are identical to those arising from a one-loop calculation and entail a serious violation of unitarity. The mean square strangeness radius and magnetic moment are evaluated by imposing unitarity bounds on the kaon-nucleon partial wave amplitudes. The impact of including the kaon's strangeness vector current form factor in the dispersion integrals is also evaluated.
No takes yet. Share an insight, caveat, or question.
Musolf et al. (1997) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: