Analysis of the P P-bar Mass Spectrum in J/Psi
Author | : A. W. Thomas |
Publisher | : |
Total Pages | : |
Release | : 2005 |
ISBN-10 | : OCLC:316314911 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Analysis of the P P-bar Mass Spectrum in J/Psi written by A. W. Thomas and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The near-threshold enhancement in the p p-bar invariant mass spectrum of the reaction J/Psi --> gamma p p-bar, observed in an experiment by the BES Collaboration, is analysed. It is shown, within the Watson-Migdal approach to final state interactions, that the mass dependence of the p p-bar spectrum close to the threshold can be reproduced by the S-wave p p-bar interaction of the Jülich N N-bar model in the isospin I=1 state. Difficulties in the consistent interpretation of the p invariant mass spectrum of the reaction J/Psi --> pi^0 p p-bar, where there are no obvious signs for a final state interaction, are discussed.