Abstract
The present paper is based on a suggestion by Franco and Yin that the phase of the nucleon-nucleon scattering amplitude should vary with momentum transfer. Studying protonHe elastic scattering at 1 GeV, we found this phase to be actually important for the description of spin observables. In particular the spin rotation parameter Q is sensitive to its sign.
- Received 11 January 1990
DOI:https://doi.org/10.1103/PhysRevC.41.R1348
©1990 American Physical Society