Kinematic Singularities of Helicity Amplitudes for Compton Scattering
- 25 April 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 168 (5), 1822-1826
- https://doi.org/10.1103/physrev.168.1822
Abstract
The kinematic-singularity structure of helicity amplitudes for Compton scattering from arbitrary-spin hadron targets is obtained by an analysis based on the crossing relations. Explicit formulas are given for a complete set of amplitudes free of kinematic singularities and zeros in both variables. These amplitudes are, however, subject to constraint conditions at special points. The constraints are not studied here.Keywords
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