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.

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

Cited by in corpus (15)

• Perturbative generation of a strange-quark asymmetry in the nucleon
• Spin effects and baryon resonance dynamics in phi-meson photoproduction at few GeV
• The Two-Photon-Exchange and γZ-Exchange Corrections to parity-Violating Elastic Electron-Proton Scattering
• On the two-boson exchange corrections to parity-violating elastic electron-proton scattering
• Strangeness in the proton and N*(1535)
• Asymmetries in phi photoproduction and the OZI violation
• Predictions for Neutrino Structure Functions
• The strangeness form factors of the proton within nonrelativistic constituent quark model revisited
• Few Body Reserch - Summary
• Light-quark flavours in a triangle
• Eta-nucleon coupling constant in QCD with SU(3) symmetry breaking
• Multi-quark components in baryons
• Collinear splitting, parton evolution and the strange-quark asymmetry of the nucleon in NNLO QCD
• Prospects for $\varphi$ meson production in pp collisions at the ALICE experiment
• Proton strangeness form factors in (4,1) clustering configurations