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28 March 2024
 
  » arxiv » hep-ph/0405118

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Understanding I=2 pi-pi Interaction
B.S.Zou ; F.Q.Wu ; L.Li ; D.V.Bugg ;
Date 13 May 2004
Subject hep-ph
AffiliationInstitute of High Energy Physics, Beijing), D.V.Bugg (QMC, London
AbstractA correct understanding and description of the I=2 pi-pi S-wave interaction is important for the extraction of the I=0 pi-pi S-wave interaction from experimental data and for understanding the I=0 pi-pi S-wave interaction theoretically. With t-channel rho, f2(1270) exchange and the pi pi -> rho rho -> pi pi box diagram contribution, we reproduce the pi-pi isotensor S-wave and D-wave scattering phase shifts and inelasticities up to 2.2 GeV quite well in a K-matrix formalism.
Source arXiv, hep-ph/0405118
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