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Article . 1991 . Peer-reviewed

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Low energy pseudoscalar-pseudoscalar interactions in the nonrelativistic quark model

Name: Low energy pseudoscalar-pseudoscalar interactions in the nonrelativistic quark model
Creator: John Weinstein
Keywords: 7. Clean energy

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Jan 1991Publisher:AIPJournal:AIP Conference Proceedings, volume 221, pages 256-276 (issn: 0094-243X,

Authors: John Weinstein;

doi: 10.1063/1.40365

Low energy pseudoscalar-pseudoscalar interactions in the nonrelativistic quark model

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Abstract

We give a brief introduction to the nonrelativistic quark model and then present results from a coupled‐channel quark model analysis of light‐quark S‐wave pseudoscalar‐pseudoscalar scattering and production processes. Annihilation mixing to s‐channel qq scalar resonances and quark exchange interactions are found to be important. Contributions from the exchange of t‐channel mesons are not required to obtain agreement with the data. Intermeson forces are important in all channels and, in particular, lead to isospin 0 and 1 KK bound states analogous to the deuteron; we identify these with the S* (975) and δ(980) scalar resonances.

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University of Tennessee at Knoxville
United States

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