Real Parts of Amplitudes and Polarization of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>π</mi><mi>N</mi></math></span> Charge-Exchange Scattering

E. N. Argyres; A. P. Contogouris; M. Svec

doi:10.1103/PhysRevD.8.184

Real Parts of Amplitudes and Polarization of $π N$ Charge-Exchange Scattering

E. N. Argyres^*

A. P. Contogouris^† and M. Svec^†

Department of Physics, State University College of Arts and Science, Plattsburgh, New York

Department of Physics, McGill University, Montreal, Canada

^*Research supported by Department of Physics, State University College of Arts and Science, Plattsburgh, N. Y.
^†Also supported by the National Research Council of Canada.

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Phys. Rev. D 8, 184 – Published 1 July, 1973

DOI: https://doi.org/10.1103/PhysRevD.8.184

Abstract

Using fixed- $t$ dispersion relations, low-energy phase shifts (or $s$ -channel resonances), and the imaginary parts of the $s$ -channel helicity amplitudes of analyses at 6 GeV, we determine the real parts, the differential cross sections, and the polarizations for $π^{-} p \to π^{0} n$ at several energies. The approach is parameter-free and almost model-independent, and leads to results in agreement with experiment and with amplitude analyses.

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Physical Review D

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Real Parts of Amplitudes and Polarization of $π N$ Charge-Exchange Scattering

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Real Parts of Amplitudes and Polarization of πN Charge-Exchange Scattering

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Real Parts of Amplitudes and Polarization of $π N$ Charge-Exchange Scattering