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Pion--Pion Scattering Experiments at Low Energy

D. Pocanic
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Abstract

This work reviews the available experimental information on the pi-pi scattering lengths, especially the recent near-threshold pi N -> pi pi N data from several laboratories and the related application of the Chew-Low-Goebel (CLG) technique well below 1 GeV/c momentum. At this time uncertainties stemming from non-pion-exchange backgrounds in near-threshold CLG studies appear to preclude a determination of the pi$-pi scattering lengths with the desired accuracy of 10% or better.

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D. Pocanic. 1998-09-18. Pion--Pion Scattering Experiments at Low Energy. https://arxiv.org/abs/hep-ph/9809455

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