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S-wave pi-pi scattering lengths

N. Nasrallah
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Abstract

An old calculation of the s-wave pi-pi scattering lengths is updated and supplemented with experimental data on the pi-pi s-wave phase shift. The results ma0 = .215 and ma2 = -.039 are in excellent agreement with those obtained from a recent analysis of the results published by the Brookhaven E865 collaboration.

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N. Nasrallah. 2003-08-12. S-wave pi-pi scattering lengths. https://arxiv.org/abs/hep-ph/0308136

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