The reaction $πN \to ππN$ above threshold in heavy-baryon chiral perturbation theory

Details The reaction $πN \to ππN$ above threshold in heavy-baryon chiral perturbation theory The reaction $πN \to ππN$ above threshold in heavy-baryon chiral perturbation theory

1998-06-20

arxiv.org/abs/nucl-th/9806063v1

Physics

Nuclear Physics

Nuclear Theory

9 pages, 4 figures, revtex

Scientific paper

We study the reaction $\pi^\pm p \to \pi^\pm \pi^+ n$ and $\pi^- p \to \pi^0
\pi^0 n$ in heavy-baryon chiral perturbation theory of chiral order three from
threshold up to pion laboratory kinetic energies of 400 MeV. We find that the
contributions from amplitudes of chiral order three are large and play an
essential role in reproducing the experimental data.

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