Understanding I=2 pi-pi Interaction

Details Understanding I=2 pi-pi Interaction Understanding I=2 pi-pi Interaction

2004-05-13

arxiv.org/abs/hep-ph/0405118v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at Hadron 03: 10th International Conference on Hadron Spectroscopy, Aschaffenburg, Germany, 31 Aug - 6 Sep 2003

Scientific paper

10.1063/1.1799730

A 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.

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