Forward Structure of the Single-Pion-Production Amplitude
نویسندگان
چکیده
منابع مشابه
The pion-pion scattering amplitude
We obtain reliable ππ scattering amplitudes consistent with experimental data, both at low and high energies, and fulfilling appropriate analyticity properties. We do this by first fitting experimental low energy (s ≤ 1.42GeV) phase shifts and inelasticities with expressions that incorporate analyticity and unitarity. In particular, for the S wave with isospin 0, we discuss in detail several se...
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We complete and improve the fits to experimental ππ scattering amplitudes, both at low and high energies, that we performed in the previous papers of this series. We then verify that the corresponding amplitudes satisfy analyticity requirements, in the form of partial wave analyticity at low energies, forward dispersion relations (FDR) at all energies, and Roy equations belowK̄K threshold; the f...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1970
ISSN: 0031-9007
DOI: 10.1103/physrevlett.24.332