Book/Report

FZJ-2020-02175

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Pion-Pion- und Pion-Kaon-Wechselwirkung im Mesonaustauschbild

Lohse, D. (Corresponding author)FZJ*

1989
Kernforschungsanlage Jülich GmbH Zentralbibliothek, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/24987

Report No.: Juel-Spez-0526

Abstract: Following the general line of the Bonn NN-interaction, a model for pseudoscalarpseudoscalarmeson interaction has been constructed and applied consistently to$\pi \pi$ and K$\pi$ scattering. The phases can be reproduced with vector meson t- ands-channel exchange up to 1 GeV. The bare masses of the vector mesons turn outto be in the range of 1.1 Ge V, depending on the form factor. We use a coupledchannel formalism, which is crucial to explain the S*(975) resonance as a boundK K state. Beyond 1 Ge V the data require a pseudoscalar-pseudoscalar coupling toa scalar octet (J$^{P}$ = 0$^{+}$) to fit the s-wave phases in the isospin-0 $\pi \pi$ and isospin-$\frac{1}{2}$K $\pi$ channels. We apply both scalar coupling and derivative coupling. The latteravoids introducing additional degrees of freedom and produces an acceptable fitto the J =0 phase shift data.

---

Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000 ; Retrocat)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

---

Database coverage:

---