The Reaction $πN \to ππN$ at Threshold

Ulf-G. Meißner

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arXiv · hep-ph/9510390

The Reaction $πN \to ππN$ at Threshold

Ulf-G. Meißner

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Abstract

I summarize the results of the complete one--loop chiral perturbation theory calculation performed recently. It is shown that it allows to accurately pin down the isospin two, S--wave $ππ$ scattering length $a_0^2$. On the other hand, interesting resonance physics makes a precise determination of $a_0^0$ very difficult.

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Ulf-G. Meißner. 1995-10-24. The Reaction $πN \to ππN$ at Threshold. https://arxiv.org/abs/hep-ph/9510390

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