Abstract

Recent polarisation data for pp and pn elastic scattering within the momentum range 6 to 45 GeV/ c are economically described by a simple Regge model. A crucial feature of the model is the inclusion of a non-factorising pomeron which couples both to helicity flip and to non-flip. This allows an understanding of the observed t-dependent structure and rapid energy dependence of the pp polarisation. Predictions are made for pp and pn polarisation measurements at higher momenta. Fragmentary data on pp elastic polarisation are compared to predictions.

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