Amplitude analysis of πN charge exchange at large momentum transfer |
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| Authors: | F. Elvekjaer T. Inami G. Ringland |
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| Affiliation: | Rutherford High Energy Laboratory, Chilton, Didcot, Berkshire, UK |
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| Abstract: | We have found evidence for the right-signature zero at t ≈ ?1.5 (GeV/c)2 and the second wrong-signature zero at t ≈ ?2.5 (GeV/c)2 in the helicity flip ?-Regge-pole exchange from an amplitude analysis of πN charge exchange extended to large momentum transfer. Reconstruction of the imaginary part of the nonflip amplitude suggests a remarkable degree of Regge behaviour out to large ?t. Confirmation of such behaviour would undermine the basic features of absorptive cut models. |
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