2020 Impact factor 3.043
Hadrons and Nuclei
Eur. Phys. J. A 6, 325-328

On momentum dependence of the reaction $\pi^-p \to \omega n$ near threshold

C. Hanhart1,2 - A. Kudryavtsev2,3

1 Department of Physics and INT, University of Washington, Seattle, WA 98195, USA
2 Institut für Kernphysik, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
3 Institute of Theoretical and Experimental Physics, B.Cheremushkinskaya 25, 117258, Moscow, Russia

Received: 11 August 1999 Communicated by B. Povh

Abstract
We discuss the near-threshold behavior of the $\omega$ production amplitude in the reaction $\pi^-p \to \omega n$. 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.

PACS
13.60.Le Meson production - 25.80.-e Meson- and hyperon-induced reactions


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