Strangeness and Hadron Structure
Abstract
The nucleon wave function may contain a significant component of ssbar pairs, according to several measurements including the pi-nucleon sigma term, charm production and polarization effects in deep-inelastic scattering. In addition, there are excesses of phi production in LEAR and other experiments, above predictions based the naive Okubo-Zweig-Iizuka rule, that may be explained if the nucleon wave function contains a polarized ssbar component. This model also reproduces qualitatively data on Lambda polarization in deep-inelastic neutrino scattering. The strange component of the proton is potentially important for other physics, such as the search for astrophysical dark matter.
Cite
@article{arxiv.hep-ph/0005322,
title = {Strangeness and Hadron Structure},
author = {John Ellis},
journal= {arXiv preprint arXiv:hep-ph/0005322},
year = {2009}
}
Comments
18 pages, 8 eps figures included, talk presented at 16th International Conference On Few-Body Problems In Physics (FB 16), 6-10 Mar 2000, Taipei