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arxiv: nucl-th/9608043 · v1 · submitted 1996-08-20 · ⚛️ nucl-th

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
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I. I. Strakovsky R. L. Workman
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keywords analysesbarreletelasticmeasurementspartial-wavescatteringspin-rotationalters
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Recent measurements of spin-rotation parameters in elastic $\pi^+ p$ 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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