On momentum dependence of the reaction $π^- p \to ωn$ near threshold
Abstract
Description
We discuss the near-threshold behavior of the $ω$ production amplitude in the reaction $π^-p \to ωn$. In contrast to the results of earlier analyses we find that the averaged squared matrix element of the production amplitude must be a decreasing function of energy in order to describe the existing experimental data.
9 pages, 2 figures, several editorial changes, the treatment of small final momenta is improved, final conclusion unchanged. Submitted to Eur. Phys. J. A
9 pages, 2 figures, several editorial changes, the treatment of small final momenta is improved, final conclusion unchanged. Submitted to Eur. Phys. J. A