SubthresholdK + production in proton-nucleus collisions as a probe for short range nucleon correlations

Abstract

Double differential cross sections for nearthreshold and subthreshold production ofK + with momentum 1.28 GeV/c at 10.5 degree on Be, Al and Cu targets had been measured. The experiment was performed with FH Spectrometer at ITEP PS in projectile proton kinetic energy range 2.9 – 1.65 GeV. The performed analysis of the excitation functions and target atomic mass dependencies evidences for high order multinucleon correlations are involved in deep subthreshold kaon production.