Angular distribution and polarization of K*(890) in ¯pp annihilation at 5.7 GeV/c

Abstract

We have studied angular distributions ofK*(890) and found strong angular asymmetry forward-backward in ¯K*/K* in the centre of mass system. The ¯K* are produced predominantly in original direction of ¯p while theK* follow the proton directions. We also looked for angular distributions andϱ-matrix elements in the rest system ofK*. We did not find any strong deviation from the isotropy distributions. In our research the corresponding matrix element for the angular distribution acoording to transversity axis has been found,ϱ00=0·37 ±0·05.