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Influence of spin-rotation measurements on partial-wave analyses of elastic pion-nucleon scattering

I. G. Alekseev·V. P. Kanavets·B. V. Morozov·D. N. Svirida·S. P. Kruglov·A. A. Kulbardis·V. V. Sumachev·R. A. Arndt·I. I. Strakovsky·R. L. Workman
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Abstract

Recent measurements of spin-rotation parameters in elastic $π^+ p$ scattering are in marked disagreement with predictions of the Carnegie-Mellon$-$Berkeley and Karlsruhe-Helsinki analyses. Using the method of Barrelet, we show how this discrepancy can be removed. We then show how this Barrelet transformation alters the partial-wave amplitudes. The effect of unitarity and analyticity constraints is also considered.

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I. G. Alekseev, V. P. Kanavets, B. V. Morozov, D. N. Svirida, S. P. Kruglov, A. A. Kulbardis, V. V. Sumachev, R. A. Arndt, I. I. Strakovsky, R. L. Workman. 1996-08-20. Influence of spin-rotation measurements on partial-wave analyses of elastic pion-nucleon scattering. https://doi.org/10.1103/physrevc.55.2049

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