Short-distance behaviour of quantum electrodynamics and the callan-symanzik equation for the photon propagator: Eduardo de Rafael. Institute for Advanced Study, Princeton, New Jersey and Institut des Hautes Études Scientifiques, Bures-sur-Yvette, France, and Jonathan L. Rosner. Institute for Advanced Study, Princeton, New Jersey and CERN, Geneva, Switzerland
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 88 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0003-4916
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✦ Synopsis
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numerically. Coulomb effects are neglected. We derive the relativistic expressions for single scattering and nucleon exchange and discuss the approximations made, including the off-massshell extrapolation of the nucleon-nucleon scattering amplitude. Fits are made to experimental measurements of differential cross sections, nucleon polarizations, and total elastic cross sections. Unitarity is maintained. We tabulate the partial waves for J < 5/2, L < 2. They are consistent with recent Faddeev calculations. We argue that with the additional calculation of double scattering the deuteron D-state percentage can be determined to the same relative uncertainty as the differential cross section. Even without the calculation of double scattering, our results indicate a D-state percentage around 8%. In an effort to provide benchmarks for future work, we have tried to be conscientious in describing our techniques and in tabulating numerical results. Comparisons are also made with earlier analyses.