Complex Singularities of Partial-Wave Amplitudes in Perturbation Theory
- 15 November 1960
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 120 (4) , 1506-1507
- https://doi.org/10.1103/physrev.120.1506
Abstract
We show that the complex singularities which invalidate Mandelstam's representation do not cause complex singularities of partial wave amplitudes for two-particle scattering processes, except for the expected "kinematic" complex branch points.Keywords
This publication has 2 references indexed in Scilit:
- The analytic properties of perturbation theory — IIl Nuovo Cimento (1869-1876), 1960
- Determination of the Pion-Nucleon Scattering Amplitude from Dispersion Relations and Unitarity. General TheoryPhysical Review B, 1958