Springer LINK: The European Physical Journal A - Abstract Volume 1 Issue 3 (1998) pp 337-346

The European Physical Journal A

ISSN: 1434-6001 (printed version)
ISSN: 1434-601X (electronic version)

Table of Contents

Abstract Volume 1 Issue 3 (1998) pp 337-346

hadron physics: <pi><pi> scattering and the meson resonance spectrum

W.M. Kloet (1), B. Loiseau (2)(3)

(1) Department of Physics and Astronomy, Rutgers University, PO Box 849, Piscataway, New Jersey 08855-0849, USA
(2) Division de Physique Théorique, Institut de Physique Nucléaire, F-91406, Orsay CEDEX
(3) LPTPE, Université P. & M. Curie, 4 Place Jussieu, F-75252, Paris CEDEX 05, France

Received: 19 November 1997

Abstract: A <pi><pi>, \=KK, and <rho><rho>(<omega><omega>) fully coupled channel model is used to predict the lowest isospin S, P, D, F-wave phase shifts and inelasticities for elastic <pi><pi> scattering from threshold to 2.0 GeV. As input the S-matrix is required to exhibit poles corresponding to the meson resonance table of the Particle Data Group. As expected, the <pi><pi> inelasticity is very strongly related to the opening of the \=K channel near 1 GeV, and the opening of <rho><rho>(4<pi>) and <omega><omega>(6<pi>) channels in the 1.5 GeV region. The predictions of this model are compared to the various elastic <pi><pi> -> <pi><pi> amplitudes, that were obtained from analyses of <pi>^- p -> <pi>^- <pi>⁺n data. The role of the various resonances, in particular the glueball candidate f₀(1500) and the f_J(1710) is investigated.

PACS: 13.75.Lb Meson-meson interactions - 14.40.-n Mesons - 13.25.-k Hadronic decays of mesons - 12.39.Pn Potential models

Communicated by W. Weise

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