The width of the ξ(2230) meson
arXiv:hep-ph/0201237 · doi:10.1016/S0370-2693(02)01232-7
Abstract
A lower bound of 135 MeV for the width of the ξmeson is obtained from analyzing the pp and pbar-p interactions by use of Regge theory. The pp data exclude a narrow ξas the latter would lead to total pbar-p cross sections far exceeding the measured ones. The broad width explains why the ξmay not be seen in pbarp-p experiments.
8 pages with 1 figure