Instanton induced spin–spin correlations

Abstract

The QCD instanton can be observed at relatively low energies at Nica collider by studying the spin-spin correlations between the incoming proton and the produced Lambda or Sigma hyperons (or the Lambda and bar{Lambda } hyperons). Low Nica energy will allow to better record and to measure the polarization of the hyperon originated by the polarized valence quark(s) in the proton fragmentation region.